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Finding the Fourth Proportional to 18,683,526.98, 28,025,290.47 and 18,683,526.98

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Solution

The fourth proportional to 18,683,526.98, 28,025,290.47 and 18,683,526.98 is: 28,025,290.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,526.98 : 28,025,290.47 = 18,683,526.98 : x
  2. Step 2: Convert to fraction form
    18,683,526.98/28,025,290.47 = 18,683,526.98/x
  3. Step 3: Cross multiply
    18,683,526.98x = 28,025,290.47 × 18,683,526.98
  4. Step 4: Simplify right side
    18,683,526.98x = 523,611,270,385,037.81
  5. Step 5: Solve for x
    x = 523,611,270,385,037.81/18,683,526.98
  6. Step 6: Final answer
    x = 28,025,290.47

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.