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Finding the Fourth Proportional to 36,874.71, 55,312.02 and 9,172.71

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Solution

The fourth proportional to 36,874.71, 55,312.02 and 9,172.71 is: 13,759.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,874.71 : 55,312.02 = 9,172.71 : x
  2. Step 2: Convert to fraction form
    36,874.71/55,312.02 = 9,172.71/x
  3. Step 3: Cross multiply
    36,874.71x = 55,312.02 × 9,172.71
  4. Step 4: Simplify right side
    36,874.71x = 507,361,118.97
  5. Step 5: Solve for x
    x = 507,361,118.97/36,874.71
  6. Step 6: Final answer
    x = 13,759.05

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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.