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Finding the Fourth Proportional to 8,891.51, 13,351.13 and 8,497.14

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Solution

The fourth proportional to 8,891.51, 13,351.13 and 8,497.14 is: 12,758.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.51 : 13,351.13 = 8,497.14 : x
  2. Step 2: Convert to fraction form
    8,891.51/13,351.13 = 8,497.14/x
  3. Step 3: Cross multiply
    8,891.51x = 13,351.13 × 8,497.14
  4. Step 4: Simplify right side
    8,891.51x = 113,446,360.08
  5. Step 5: Solve for x
    x = 113,446,360.08/8,891.51
  6. Step 6: Final answer
    x = 12,758.96

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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.