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Finding the Fourth Proportional to 61,345.36, 84,656.50 and 34,487.92

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Solution

The fourth proportional to 61,345.36, 84,656.50 and 34,487.92 is: 47,593.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,345.36 : 84,656.50 = 34,487.92 : x
  2. Step 2: Convert to fraction form
    61,345.36/84,656.50 = 34,487.92/x
  3. Step 3: Cross multiply
    61,345.36x = 84,656.50 × 34,487.92
  4. Step 4: Simplify right side
    61,345.36x = 2,919,626,301.62
  5. Step 5: Solve for x
    x = 2,919,626,301.62/61,345.36
  6. Step 6: Final answer
    x = 47,593.27

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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.