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Finding the Fourth Proportional to 8,757.68, 13,140.16 and 4,373.96

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Solution

The fourth proportional to 8,757.68, 13,140.16 and 4,373.96 is: 6,562.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.68 : 13,140.16 = 4,373.96 : x
  2. Step 2: Convert to fraction form
    8,757.68/13,140.16 = 4,373.96/x
  3. Step 3: Cross multiply
    8,757.68x = 13,140.16 × 4,373.96
  4. Step 4: Simplify right side
    8,757.68x = 57,474,534.23
  5. Step 5: Solve for x
    x = 57,474,534.23/8,757.68
  6. Step 6: Final answer
    x = 6,562.76

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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.