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Finding the Fourth Proportional to 9,167.25, 12,646.89 and 7,039.11

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Solution

The fourth proportional to 9,167.25, 12,646.89 and 7,039.11 is: 9,710.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,167.25 : 12,646.89 = 7,039.11 : x
  2. Step 2: Convert to fraction form
    9,167.25/12,646.89 = 7,039.11/x
  3. Step 3: Cross multiply
    9,167.25x = 12,646.89 × 7,039.11
  4. Step 4: Simplify right side
    9,167.25x = 89,022,849.87
  5. Step 5: Solve for x
    x = 89,022,849.87/9,167.25
  6. Step 6: Final answer
    x = 9,710.97

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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.