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Finding the Fourth Proportional to 8,766.62, 13,087.45 and 8,459.02

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Solution

The fourth proportional to 8,766.62, 13,087.45 and 8,459.02 is: 12,628.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766.62 : 13,087.45 = 8,459.02 : x
  2. Step 2: Convert to fraction form
    8,766.62/13,087.45 = 8,459.02/x
  3. Step 3: Cross multiply
    8,766.62x = 13,087.45 × 8,459.02
  4. Step 4: Simplify right side
    8,766.62x = 110,707,001.30
  5. Step 5: Solve for x
    x = 110,707,001.30/8,766.62
  6. Step 6: Final answer
    x = 12,628.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.