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Finding the Fourth Proportional to 12,658.11, 17,468.24 and 7,069.11

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Solution

The fourth proportional to 12,658.11, 17,468.24 and 7,069.11 is: 9,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,658.11 : 17,468.24 = 7,069.11 : x
  2. Step 2: Convert to fraction form
    12,658.11/17,468.24 = 7,069.11/x
  3. Step 3: Cross multiply
    12,658.11x = 17,468.24 × 7,069.11
  4. Step 4: Simplify right side
    12,658.11x = 123,484,874.72
  5. Step 5: Solve for x
    x = 123,484,874.72/12,658.11
  6. Step 6: Final answer
    x = 9,755.40

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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.