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Finding the Fourth Proportional to 61,917.68, 85,451.72 and 35,064.92

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Solution

The fourth proportional to 61,917.68, 85,451.72 and 35,064.92 is: 48,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,917.68 : 85,451.72 = 35,064.92 : x
  2. Step 2: Convert to fraction form
    61,917.68/85,451.72 = 35,064.92/x
  3. Step 3: Cross multiply
    61,917.68x = 85,451.72 × 35,064.92
  4. Step 4: Simplify right side
    61,917.68x = 2,996,357,725.66
  5. Step 5: Solve for x
    x = 2,996,357,725.66/61,917.68
  6. Step 6: Final answer
    x = 48,392.60

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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.