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Finding the Fourth Proportional to 66,358.60, 99,246.30 and 50,612.20

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Solution

The fourth proportional to 66,358.60, 99,246.30 and 50,612.20 is: 75,695.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,358.60 : 99,246.30 = 50,612.20 : x
  2. Step 2: Convert to fraction form
    66,358.60/99,246.30 = 50,612.20/x
  3. Step 3: Cross multiply
    66,358.60x = 99,246.30 × 50,612.20
  4. Step 4: Simplify right side
    66,358.60x = 5,023,073,584.86
  5. Step 5: Solve for x
    x = 5,023,073,584.86/66,358.60
  6. Step 6: Final answer
    x = 75,695.89

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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.