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Finding the Fourth Proportional to 64,393.59, 88,854.69 and 35,712.91

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Solution

The fourth proportional to 64,393.59, 88,854.69 and 35,712.91 is: 49,279.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,393.59 : 88,854.69 = 35,712.91 : x
  2. Step 2: Convert to fraction form
    64,393.59/88,854.69 = 35,712.91/x
  3. Step 3: Cross multiply
    64,393.59x = 88,854.69 × 35,712.91
  4. Step 4: Simplify right side
    64,393.59x = 3,173,259,324.91
  5. Step 5: Solve for x
    x = 3,173,259,324.91/64,393.59
  6. Step 6: Final answer
    x = 49,279.12

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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.