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Finding the Fourth Proportional to 41,605.40, 62,432.40 and 15,312.80

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Solution

The fourth proportional to 41,605.40, 62,432.40 and 15,312.80 is: 22,978.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,605.40 : 62,432.40 = 15,312.80 : x
  2. Step 2: Convert to fraction form
    41,605.40/62,432.40 = 15,312.80/x
  3. Step 3: Cross multiply
    41,605.40x = 62,432.40 × 15,312.80
  4. Step 4: Simplify right side
    41,605.40x = 956,014,854.72
  5. Step 5: Solve for x
    x = 956,014,854.72/41,605.40
  6. Step 6: Final answer
    x = 22,978.14

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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.