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Finding the Fourth Proportional to 18,683,570.70, 28,001,736.45 and 16,652,285.10

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Solution

The fourth proportional to 18,683,570.70, 28,001,736.45 and 16,652,285.10 is: 24,957,375.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,570.70 : 28,001,736.45 = 16,652,285.10 : x
  2. Step 2: Convert to fraction form
    18,683,570.70/28,001,736.45 = 16,652,285.10/x
  3. Step 3: Cross multiply
    18,683,570.70x = 28,001,736.45 × 16,652,285.10
  4. Step 4: Simplify right side
    18,683,570.70x = 466,292,898,660,461.88
  5. Step 5: Solve for x
    x = 466,292,898,660,461.88/18,683,570.70
  6. Step 6: Final answer
    x = 24,957,375.98

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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.