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Finding the Fourth Proportional to 27,100.97, 37,400.90 and 15,164.20

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Solution

The fourth proportional to 27,100.97, 37,400.90 and 15,164.20 is: 20,927.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,100.97 : 37,400.90 = 15,164.20 : x
  2. Step 2: Convert to fraction form
    27,100.97/37,400.90 = 15,164.20/x
  3. Step 3: Cross multiply
    27,100.97x = 37,400.90 × 15,164.20
  4. Step 4: Simplify right side
    27,100.97x = 567,154,727.78
  5. Step 5: Solve for x
    x = 567,154,727.78/27,100.97
  6. Step 6: Final answer
    x = 20,927.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.