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Finding the Fourth Proportional to 65,423.28, 90,193.42 and 44,168.88

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Solution

The fourth proportional to 65,423.28, 90,193.42 and 44,168.88 is: 60,891.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,423.28 : 90,193.42 = 44,168.88 : x
  2. Step 2: Convert to fraction form
    65,423.28/90,193.42 = 44,168.88/x
  3. Step 3: Cross multiply
    65,423.28x = 90,193.42 × 44,168.88
  4. Step 4: Simplify right side
    65,423.28x = 3,983,742,344.77
  5. Step 5: Solve for x
    x = 3,983,742,344.77/65,423.28
  6. Step 6: Final answer
    x = 60,891.82

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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.