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Finding the Fourth Proportional to 27,661.76, 38,160.88 and 17,047.52

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Solution

The fourth proportional to 27,661.76, 38,160.88 and 17,047.52 is: 23,517.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,661.76 : 38,160.88 = 17,047.52 : x
  2. Step 2: Convert to fraction form
    27,661.76/38,160.88 = 17,047.52/x
  3. Step 3: Cross multiply
    27,661.76x = 38,160.88 × 17,047.52
  4. Step 4: Simplify right side
    27,661.76x = 650,548,365.02
  5. Step 5: Solve for x
    x = 650,548,365.02/27,661.76
  6. Step 6: Final answer
    x = 23,517.97

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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.