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Finding the Fourth Proportional to 8,877.43, 12,161.94 and 8,545.06

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Solution

The fourth proportional to 8,877.43, 12,161.94 and 8,545.06 is: 11,706.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,877.43 : 12,161.94 = 8,545.06 : x
  2. Step 2: Convert to fraction form
    8,877.43/12,161.94 = 8,545.06/x
  3. Step 3: Cross multiply
    8,877.43x = 12,161.94 × 8,545.06
  4. Step 4: Simplify right side
    8,877.43x = 103,924,507.02
  5. Step 5: Solve for x
    x = 103,924,507.02/8,877.43
  6. Step 6: Final answer
    x = 11,706.60

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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.