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Finding the Fourth Proportional to 27,335.40, 37,723.04 and 15,397.60

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Solution

The fourth proportional to 27,335.40, 37,723.04 and 15,397.60 is: 21,248.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,335.40 : 37,723.04 = 15,397.60 : x
  2. Step 2: Convert to fraction form
    27,335.40/37,723.04 = 15,397.60/x
  3. Step 3: Cross multiply
    27,335.40x = 37,723.04 × 15,397.60
  4. Step 4: Simplify right side
    27,335.40x = 580,844,280.70
  5. Step 5: Solve for x
    x = 580,844,280.70/27,335.40
  6. Step 6: Final answer
    x = 21,248.79

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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.