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Finding the Fourth Proportional to 65,151.88, 89,913.57 and 36,470.98

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Solution

The fourth proportional to 65,151.88, 89,913.57 and 36,470.98 is: 50,332.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,151.88 : 89,913.57 = 36,470.98 : x
  2. Step 2: Convert to fraction form
    65,151.88/89,913.57 = 36,470.98/x
  3. Step 3: Cross multiply
    65,151.88x = 89,913.57 × 36,470.98
  4. Step 4: Simplify right side
    65,151.88x = 3,279,236,013.20
  5. Step 5: Solve for x
    x = 3,279,236,013.20/65,151.88
  6. Step 6: Final answer
    x = 50,332.18

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1.5x scale

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.