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Finding the Fourth Proportional to 8,519.16, 12,776.01 and 7,425.66

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Solution

The fourth proportional to 8,519.16, 12,776.01 and 7,425.66 is: 11,136.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.16 : 12,776.01 = 7,425.66 : x
  2. Step 2: Convert to fraction form
    8,519.16/12,776.01 = 7,425.66/x
  3. Step 3: Cross multiply
    8,519.16x = 12,776.01 × 7,425.66
  4. Step 4: Simplify right side
    8,519.16x = 94,870,306.42
  5. Step 5: Solve for x
    x = 94,870,306.42/8,519.16
  6. Step 6: Final answer
    x = 11,136.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.