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Finding the Fourth Proportional to 27,160.95, 40,731.43 and 9,387.12

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Solution

The fourth proportional to 27,160.95, 40,731.43 and 9,387.12 is: 14,077.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,160.95 : 40,731.43 = 9,387.12 : x
  2. Step 2: Convert to fraction form
    27,160.95/40,731.43 = 9,387.12/x
  3. Step 3: Cross multiply
    27,160.95x = 40,731.43 × 9,387.12
  4. Step 4: Simplify right side
    27,160.95x = 382,350,821.18
  5. Step 5: Solve for x
    x = 382,350,821.18/27,160.95
  6. Step 6: Final answer
    x = 14,077.23

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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.