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Finding the Fourth Proportional to 61,891.27, 85,411.97 and 35,033.20

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Solution

The fourth proportional to 61,891.27, 85,411.97 and 35,033.20 is: 48,346.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,891.27 : 85,411.97 = 35,033.20 : x
  2. Step 2: Convert to fraction form
    61,891.27/85,411.97 = 35,033.20/x
  3. Step 3: Cross multiply
    61,891.27x = 85,411.97 × 35,033.20
  4. Step 4: Simplify right side
    61,891.27x = 2,992,254,501.46
  5. Step 5: Solve for x
    x = 2,992,254,501.46/61,891.27
  6. Step 6: Final answer
    x = 48,346.96

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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.