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Finding the Fourth Proportional to 8,775.24, 12,107.88 and 5,049.24

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Solution

The fourth proportional to 8,775.24, 12,107.88 and 5,049.24 is: 6,966.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.24 : 12,107.88 = 5,049.24 : x
  2. Step 2: Convert to fraction form
    8,775.24/12,107.88 = 5,049.24/x
  3. Step 3: Cross multiply
    8,775.24x = 12,107.88 × 5,049.24
  4. Step 4: Simplify right side
    8,775.24x = 61,135,592.01
  5. Step 5: Solve for x
    x = 61,135,592.01/8,775.24
  6. Step 6: Final answer
    x = 6,966.83

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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.