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Finding the Fourth Proportional to 36,931.68, 55,397.16 and 9,229.68

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Solution

The fourth proportional to 36,931.68, 55,397.16 and 9,229.68 is: 13,844.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,931.68 : 55,397.16 = 9,229.68 : x
  2. Step 2: Convert to fraction form
    36,931.68/55,397.16 = 9,229.68/x
  3. Step 3: Cross multiply
    36,931.68x = 55,397.16 × 9,229.68
  4. Step 4: Simplify right side
    36,931.68x = 511,298,059.71
  5. Step 5: Solve for x
    x = 511,298,059.71/36,931.68
  6. Step 6: Final answer
    x = 13,844.43

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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.