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Finding the Fourth Proportional to 20,793.83, 28,695.48 and 11,233.71

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Solution

The fourth proportional to 20,793.83, 28,695.48 and 11,233.71 is: 15,502.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793.83 : 28,695.48 = 11,233.71 : x
  2. Step 2: Convert to fraction form
    20,793.83/28,695.48 = 11,233.71/x
  3. Step 3: Cross multiply
    20,793.83x = 28,695.48 × 11,233.71
  4. Step 4: Simplify right side
    20,793.83x = 322,356,700.63
  5. Step 5: Solve for x
    x = 322,356,700.63/20,793.83
  6. Step 6: Final answer
    x = 15,502.52

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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.