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Finding the Fourth Proportional to 8,459.01, 11,660.49 and 6,663.15

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Solution

The fourth proportional to 8,459.01, 11,660.49 and 6,663.15 is: 9,184.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,459.01 : 11,660.49 = 6,663.15 : x
  2. Step 2: Convert to fraction form
    8,459.01/11,660.49 = 6,663.15/x
  3. Step 3: Cross multiply
    8,459.01x = 11,660.49 × 6,663.15
  4. Step 4: Simplify right side
    8,459.01x = 77,695,593.94
  5. Step 5: Solve for x
    x = 77,695,593.94/8,459.01
  6. Step 6: Final answer
    x = 9,184.95

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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.