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Finding the Fourth Proportional to 8,766.79, 12,098.08 and 5,408.26

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Solution

The fourth proportional to 8,766.79, 12,098.08 and 5,408.26 is: 7,463.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766.79 : 12,098.08 = 5,408.26 : x
  2. Step 2: Convert to fraction form
    8,766.79/12,098.08 = 5,408.26/x
  3. Step 3: Cross multiply
    8,766.79x = 12,098.08 × 5,408.26
  4. Step 4: Simplify right side
    8,766.79x = 65,429,562.14
  5. Step 5: Solve for x
    x = 65,429,562.14/8,766.79
  6. Step 6: Final answer
    x = 7,463.34

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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.