Home / 37,899.97-52,301.30-20,905.76

Finding the Fourth Proportional to 37,899.97, 52,301.30 and 20,905.76

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Solution

The fourth proportional to 37,899.97, 52,301.30 and 20,905.76 is: 28,849.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,899.97 : 52,301.30 = 20,905.76 : x
  2. Step 2: Convert to fraction form
    37,899.97/52,301.30 = 20,905.76/x
  3. Step 3: Cross multiply
    37,899.97x = 52,301.30 × 20,905.76
  4. Step 4: Simplify right side
    37,899.97x = 1,093,398,451.71
  5. Step 5: Solve for x
    x = 1,093,398,451.71/37,899.97
  6. Step 6: Final answer
    x = 28,849.59

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Double scale
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Similar ratio
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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.