Home / 47,340.59-65,301.19-28,207.78

Finding the Fourth Proportional to 47,340.59, 65,301.19 and 28,207.78

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Solution

The fourth proportional to 47,340.59, 65,301.19 and 28,207.78 is: 38,909.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,340.59 : 65,301.19 = 28,207.78 : x
  2. Step 2: Convert to fraction form
    47,340.59/65,301.19 = 28,207.78/x
  3. Step 3: Cross multiply
    47,340.59x = 65,301.19 × 28,207.78
  4. Step 4: Simplify right side
    47,340.59x = 1,842,001,367.49
  5. Step 5: Solve for x
    x = 1,842,001,367.49/47,340.59
  6. Step 6: Final answer
    x = 38,909.56

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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.