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Finding the Fourth Proportional to 61,887.84, 85,449.60 and 38,046.48

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Solution

The fourth proportional to 61,887.84, 85,449.60 and 38,046.48 is: 52,531.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,887.84 : 85,449.60 = 38,046.48 : x
  2. Step 2: Convert to fraction form
    61,887.84/85,449.60 = 38,046.48/x
  3. Step 3: Cross multiply
    61,887.84x = 85,449.60 × 38,046.48
  4. Step 4: Simplify right side
    61,887.84x = 3,251,056,497.41
  5. Step 5: Solve for x
    x = 3,251,056,497.41/61,887.84
  6. Step 6: Final answer
    x = 52,531.43

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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.