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Finding the Fourth Proportional to 38,703.68, 53,416.01 and 22,789.61

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Solution

The fourth proportional to 38,703.68, 53,416.01 and 22,789.61 is: 31,452.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,703.68 : 53,416.01 = 22,789.61 : x
  2. Step 2: Convert to fraction form
    38,703.68/53,416.01 = 22,789.61/x
  3. Step 3: Cross multiply
    38,703.68x = 53,416.01 × 22,789.61
  4. Step 4: Simplify right side
    38,703.68x = 1,217,329,825.55
  5. Step 5: Solve for x
    x = 1,217,329,825.55/38,703.68
  6. Step 6: Final answer
    x = 31,452.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.