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Finding the Fourth Proportional to 65,614.85, 90,525.87 and 36,928.70

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Solution

The fourth proportional to 65,614.85, 90,525.87 and 36,928.70 is: 50,948.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,614.85 : 90,525.87 = 36,928.70 : x
  2. Step 2: Convert to fraction form
    65,614.85/90,525.87 = 36,928.70/x
  3. Step 3: Cross multiply
    65,614.85x = 90,525.87 × 36,928.70
  4. Step 4: Simplify right side
    65,614.85x = 3,343,002,695.47
  5. Step 5: Solve for x
    x = 3,343,002,695.47/65,614.85
  6. Step 6: Final answer
    x = 50,948.87

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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.