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Finding the Fourth Proportional to 22,938.69, 34,384.80 and 15,543.90

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Solution

The fourth proportional to 22,938.69, 34,384.80 and 15,543.90 is: 23,300.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,938.69 : 34,384.80 = 15,543.90 : x
  2. Step 2: Convert to fraction form
    22,938.69/34,384.80 = 15,543.90/x
  3. Step 3: Cross multiply
    22,938.69x = 34,384.80 × 15,543.90
  4. Step 4: Simplify right side
    22,938.69x = 534,473,951.01
  5. Step 5: Solve for x
    x = 534,473,951.01/22,938.69
  6. Step 6: Final answer
    x = 23,300.10

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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.