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Finding the Fourth Proportional to 61,345.78, 84,657.52 and 34,488.04

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Solution

The fourth proportional to 61,345.78, 84,657.52 and 34,488.04 is: 47,593.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,345.78 : 84,657.52 = 34,488.04 : x
  2. Step 2: Convert to fraction form
    61,345.78/84,657.52 = 34,488.04/x
  3. Step 3: Cross multiply
    61,345.78x = 84,657.52 × 34,488.04
  4. Step 4: Simplify right side
    61,345.78x = 2,919,671,936.06
  5. Step 5: Solve for x
    x = 2,919,671,936.06/61,345.78
  6. Step 6: Final answer
    x = 47,593.69

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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.