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Finding the Fourth Proportional to 65,132.76, 89,881.74 and 36,838.92

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Solution

The fourth proportional to 65,132.76, 89,881.74 and 36,838.92 is: 50,836.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,132.76 : 89,881.74 = 36,838.92 : x
  2. Step 2: Convert to fraction form
    65,132.76/89,881.74 = 36,838.92/x
  3. Step 3: Cross multiply
    65,132.76x = 89,881.74 × 36,838.92
  4. Step 4: Simplify right side
    65,132.76x = 3,311,146,229.32
  5. Step 5: Solve for x
    x = 3,311,146,229.32/65,132.76
  6. Step 6: Final answer
    x = 50,836.88

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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.