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Finding the Fourth Proportional to 60,474.60, 90,711.90 and 43,756.20

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Solution

The fourth proportional to 60,474.60, 90,711.90 and 43,756.20 is: 65,634.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,474.60 : 90,711.90 = 43,756.20 : x
  2. Step 2: Convert to fraction form
    60,474.60/90,711.90 = 43,756.20/x
  3. Step 3: Cross multiply
    60,474.60x = 90,711.90 × 43,756.20
  4. Step 4: Simplify right side
    60,474.60x = 3,969,208,038.78
  5. Step 5: Solve for x
    x = 3,969,208,038.78/60,474.60
  6. Step 6: Final answer
    x = 65,634.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.