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Finding the Fourth Proportional to 9,167.92, 12,650.40 and 5,188.96

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Solution

The fourth proportional to 9,167.92, 12,650.40 and 5,188.96 is: 7,160.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,167.92 : 12,650.40 = 5,188.96 : x
  2. Step 2: Convert to fraction form
    9,167.92/12,650.40 = 5,188.96/x
  3. Step 3: Cross multiply
    9,167.92x = 12,650.40 × 5,188.96
  4. Step 4: Simplify right side
    9,167.92x = 65,642,419.58
  5. Step 5: Solve for x
    x = 65,642,419.58/9,167.92
  6. Step 6: Final answer
    x = 7,160.01

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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.