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Finding the Fourth Proportional to 53,850.70, 80,862.45 and 36,397.90

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Solution

The fourth proportional to 53,850.70, 80,862.45 and 36,397.90 is: 54,655.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,850.70 : 80,862.45 = 36,397.90 : x
  2. Step 2: Convert to fraction form
    53,850.70/80,862.45 = 36,397.90/x
  3. Step 3: Cross multiply
    53,850.70x = 80,862.45 × 36,397.90
  4. Step 4: Simplify right side
    53,850.70x = 2,943,223,368.86
  5. Step 5: Solve for x
    x = 2,943,223,368.86/53,850.70
  6. Step 6: Final answer
    x = 54,655.25

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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.