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Finding the Fourth Proportional to 61,479.62, 84,841.02 and 34,622.44

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Solution

The fourth proportional to 61,479.62, 84,841.02 and 34,622.44 is: 47,778.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,479.62 : 84,841.02 = 34,622.44 : x
  2. Step 2: Convert to fraction form
    61,479.62/84,841.02 = 34,622.44/x
  3. Step 3: Cross multiply
    61,479.62x = 84,841.02 × 34,622.44
  4. Step 4: Simplify right side
    61,479.62x = 2,937,403,124.49
  5. Step 5: Solve for x
    x = 2,937,403,124.49/61,479.62
  6. Step 6: Final answer
    x = 47,778.49

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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.