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Finding the Fourth Proportional to 61,773.38, 85,256.41 and 39,114.47

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Solution

The fourth proportional to 61,773.38, 85,256.41 and 39,114.47 is: 53,983.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,773.38 : 85,256.41 = 39,114.47 : x
  2. Step 2: Convert to fraction form
    61,773.38/85,256.41 = 39,114.47/x
  3. Step 3: Cross multiply
    61,773.38x = 85,256.41 × 39,114.47
  4. Step 4: Simplify right side
    61,773.38x = 3,334,759,406.61
  5. Step 5: Solve for x
    x = 3,334,759,406.61/61,773.38
  6. Step 6: Final answer
    x = 53,983.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.