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Finding the Fourth Proportional to 28,302.96, 39,046.68 and 17,105.52

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Solution

The fourth proportional to 28,302.96, 39,046.68 and 17,105.52 is: 23,598.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,302.96 : 39,046.68 = 17,105.52 : x
  2. Step 2: Convert to fraction form
    28,302.96/39,046.68 = 17,105.52/x
  3. Step 3: Cross multiply
    28,302.96x = 39,046.68 × 17,105.52
  4. Step 4: Simplify right side
    28,302.96x = 667,913,765.67
  5. Step 5: Solve for x
    x = 667,913,765.67/28,302.96
  6. Step 6: Final answer
    x = 23,598.72

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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.