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Finding the Fourth Proportional to 65,007.64, 89,712.30 and 36,717.52

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Solution

The fourth proportional to 65,007.64, 89,712.30 and 36,717.52 is: 50,671.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,007.64 : 89,712.30 = 36,717.52 : x
  2. Step 2: Convert to fraction form
    65,007.64/89,712.30 = 36,717.52/x
  3. Step 3: Cross multiply
    65,007.64x = 89,712.30 × 36,717.52
  4. Step 4: Simplify right side
    65,007.64x = 3,294,013,169.50
  5. Step 5: Solve for x
    x = 3,294,013,169.50/65,007.64
  6. Step 6: Final answer
    x = 50,671.17

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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.