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Finding the Fourth Proportional to 8,881.93, 12,168.06 and 8,549.56

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Solution

The fourth proportional to 8,881.93, 12,168.06 and 8,549.56 is: 11,712.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.93 : 12,168.06 = 8,549.56 : x
  2. Step 2: Convert to fraction form
    8,881.93/12,168.06 = 8,549.56/x
  3. Step 3: Cross multiply
    8,881.93x = 12,168.06 × 8,549.56
  4. Step 4: Simplify right side
    8,881.93x = 104,031,559.05
  5. Step 5: Solve for x
    x = 104,031,559.05/8,881.93
  6. Step 6: Final answer
    x = 11,712.72

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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.