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Finding the Fourth Proportional to 61,345.77, 84,657.53 and 34,488.05

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Solution

The fourth proportional to 61,345.77, 84,657.53 and 34,488.05 is: 47,593.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,345.77 : 84,657.53 = 34,488.05 : x
  2. Step 2: Convert to fraction form
    61,345.77/84,657.53 = 34,488.05/x
  3. Step 3: Cross multiply
    61,345.77x = 84,657.53 × 34,488.05
  4. Step 4: Simplify right side
    61,345.77x = 2,919,672,531.79
  5. Step 5: Solve for x
    x = 2,919,672,531.79/61,345.77
  6. Step 6: Final answer
    x = 47,593.71

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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.