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Finding the Fourth Proportional to 8,854.97, 12,208.05 and 7,590.56

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Solution

The fourth proportional to 8,854.97, 12,208.05 and 7,590.56 is: 10,464.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.97 : 12,208.05 = 7,590.56 : x
  2. Step 2: Convert to fraction form
    8,854.97/12,208.05 = 7,590.56/x
  3. Step 3: Cross multiply
    8,854.97x = 12,208.05 × 7,590.56
  4. Step 4: Simplify right side
    8,854.97x = 92,665,874.97
  5. Step 5: Solve for x
    x = 92,665,874.97/8,854.97
  6. Step 6: Final answer
    x = 10,464.85

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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.