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Finding the Fourth Proportional to 61,845.62, 85,294.27 and 47,540.08

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Solution

The fourth proportional to 61,845.62, 85,294.27 and 47,540.08 is: 65,564.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,845.62 : 85,294.27 = 47,540.08 : x
  2. Step 2: Convert to fraction form
    61,845.62/85,294.27 = 47,540.08/x
  3. Step 3: Cross multiply
    61,845.62x = 85,294.27 × 47,540.08
  4. Step 4: Simplify right side
    61,845.62x = 4,054,896,087.26
  5. Step 5: Solve for x
    x = 4,054,896,087.26/61,845.62
  6. Step 6: Final answer
    x = 65,564.80

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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.