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Finding the Fourth Proportional to 18,706.66, 28,050.60 and 6,222.28

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Solution

The fourth proportional to 18,706.66, 28,050.60 and 6,222.28 is: 9,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,706.66 : 28,050.60 = 6,222.28 : x
  2. Step 2: Convert to fraction form
    18,706.66/28,050.60 = 6,222.28/x
  3. Step 3: Cross multiply
    18,706.66x = 28,050.60 × 6,222.28
  4. Step 4: Simplify right side
    18,706.66x = 174,538,687.37
  5. Step 5: Solve for x
    x = 174,538,687.37/18,706.66
  6. Step 6: Final answer
    x = 9,330.30

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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.