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Finding the Fourth Proportional to 80,446.64, 111,065.26 and 62,507.80

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Solution

The fourth proportional to 80,446.64, 111,065.26 and 62,507.80 is: 86,298.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,446.64 : 111,065.26 = 62,507.80 : x
  2. Step 2: Convert to fraction form
    80,446.64/111,065.26 = 62,507.80/x
  3. Step 3: Cross multiply
    80,446.64x = 111,065.26 × 62,507.80
  4. Step 4: Simplify right side
    80,446.64x = 6,942,445,059.03
  5. Step 5: Solve for x
    x = 6,942,445,059.03/80,446.64
  6. Step 6: Final answer
    x = 86,298.76

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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.