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Finding the Fourth Proportional to 8,305.60, 12,458.13 and 3,373.78

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Solution

The fourth proportional to 8,305.60, 12,458.13 and 3,373.78 is: 5,060.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305.60 : 12,458.13 = 3,373.78 : x
  2. Step 2: Convert to fraction form
    8,305.60/12,458.13 = 3,373.78/x
  3. Step 3: Cross multiply
    8,305.60x = 12,458.13 × 3,373.78
  4. Step 4: Simplify right side
    8,305.60x = 42,030,989.83
  5. Step 5: Solve for x
    x = 42,030,989.83/8,305.60
  6. Step 6: Final answer
    x = 5,060.56

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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.