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Finding the Fourth Proportional to 65,044.71, 89,763.45 and 36,749.79

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Solution

The fourth proportional to 65,044.71, 89,763.45 and 36,749.79 is: 50,715.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,044.71 : 89,763.45 = 36,749.79 : x
  2. Step 2: Convert to fraction form
    65,044.71/89,763.45 = 36,749.79/x
  3. Step 3: Cross multiply
    65,044.71x = 89,763.45 × 36,749.79
  4. Step 4: Simplify right side
    65,044.71x = 3,298,787,304.61
  5. Step 5: Solve for x
    x = 3,298,787,304.61/65,044.71
  6. Step 6: Final answer
    x = 50,715.69

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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.