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Finding the Fourth Proportional to 8,788.97, 12,123.18 and 6,135.41

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Solution

The fourth proportional to 8,788.97, 12,123.18 and 6,135.41 is: 8,462.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.97 : 12,123.18 = 6,135.41 : x
  2. Step 2: Convert to fraction form
    8,788.97/12,123.18 = 6,135.41/x
  3. Step 3: Cross multiply
    8,788.97x = 12,123.18 × 6,135.41
  4. Step 4: Simplify right side
    8,788.97x = 74,380,679.80
  5. Step 5: Solve for x
    x = 74,380,679.80/8,788.97
  6. Step 6: Final answer
    x = 8,462.96

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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.