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Finding the Fourth Proportional to 8,479.13, 11,715.01 and 7,058.26

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Solution

The fourth proportional to 8,479.13, 11,715.01 and 7,058.26 is: 9,751.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.13 : 11,715.01 = 7,058.26 : x
  2. Step 2: Convert to fraction form
    8,479.13/11,715.01 = 7,058.26/x
  3. Step 3: Cross multiply
    8,479.13x = 11,715.01 × 7,058.26
  4. Step 4: Simplify right side
    8,479.13x = 82,687,557.29
  5. Step 5: Solve for x
    x = 82,687,557.29/8,479.13
  6. Step 6: Final answer
    x = 9,751.89

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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.