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Finding the Fourth Proportional to 61,385.58, 84,708.72 and 34,529.22

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Solution

The fourth proportional to 61,385.58, 84,708.72 and 34,529.22 is: 47,648.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,385.58 : 84,708.72 = 34,529.22 : x
  2. Step 2: Convert to fraction form
    61,385.58/84,708.72 = 34,529.22/x
  3. Step 3: Cross multiply
    61,385.58x = 84,708.72 × 34,529.22
  4. Step 4: Simplify right side
    61,385.58x = 2,924,926,028.80
  5. Step 5: Solve for x
    x = 2,924,926,028.80/61,385.58
  6. Step 6: Final answer
    x = 47,648.42

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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.