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Finding the Fourth Proportional to 69,678.60, 96,156.84 and 37,847.76

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Solution

The fourth proportional to 69,678.60, 96,156.84 and 37,847.76 is: 52,230.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,678.60 : 96,156.84 = 37,847.76 : x
  2. Step 2: Convert to fraction form
    69,678.60/96,156.84 = 37,847.76/x
  3. Step 3: Cross multiply
    69,678.60x = 96,156.84 × 37,847.76
  4. Step 4: Simplify right side
    69,678.60x = 3,639,321,002.68
  5. Step 5: Solve for x
    x = 3,639,321,002.68/69,678.60
  6. Step 6: Final answer
    x = 52,230.11

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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.