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Finding the Fourth Proportional to 19,785.39, 29,677.88 and 5,934.39

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Solution

The fourth proportional to 19,785.39, 29,677.88 and 5,934.39 is: 8,901.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.39 : 29,677.88 = 5,934.39 : x
  2. Step 2: Convert to fraction form
    19,785.39/29,677.88 = 5,934.39/x
  3. Step 3: Cross multiply
    19,785.39x = 29,677.88 × 5,934.39
  4. Step 4: Simplify right side
    19,785.39x = 176,120,084.62
  5. Step 5: Solve for x
    x = 176,120,084.62/19,785.39
  6. Step 6: Final answer
    x = 8,901.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.