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Finding the Fourth Proportional to 8,868.51, 12,149.81 and 8,536.14

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Solution

The fourth proportional to 8,868.51, 12,149.81 and 8,536.14 is: 11,694.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.51 : 12,149.81 = 8,536.14 : x
  2. Step 2: Convert to fraction form
    8,868.51/12,149.81 = 8,536.14/x
  3. Step 3: Cross multiply
    8,868.51x = 12,149.81 × 8,536.14
  4. Step 4: Simplify right side
    8,868.51x = 103,712,436.45
  5. Step 5: Solve for x
    x = 103,712,436.45/8,868.51
  6. Step 6: Final answer
    x = 11,694.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.