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Finding the Fourth Proportional to 61,275.57, 84,560.63 and 34,418.09

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Solution

The fourth proportional to 61,275.57, 84,560.63 and 34,418.09 is: 47,497.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,275.57 : 84,560.63 = 34,418.09 : x
  2. Step 2: Convert to fraction form
    61,275.57/84,560.63 = 34,418.09/x
  3. Step 3: Cross multiply
    61,275.57x = 84,560.63 × 34,418.09
  4. Step 4: Simplify right side
    61,275.57x = 2,910,415,373.80
  5. Step 5: Solve for x
    x = 2,910,415,373.80/61,275.57
  6. Step 6: Final answer
    x = 47,497.16

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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.