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Finding the Fourth Proportional to 28,458.96, 39,275.34 and 16,523.62

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Solution

The fourth proportional to 28,458.96, 39,275.34 and 16,523.62 is: 22,803.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458.96 : 39,275.34 = 16,523.62 : x
  2. Step 2: Convert to fraction form
    28,458.96/39,275.34 = 16,523.62/x
  3. Step 3: Cross multiply
    28,458.96x = 39,275.34 × 16,523.62
  4. Step 4: Simplify right side
    28,458.96x = 648,970,793.53
  5. Step 5: Solve for x
    x = 648,970,793.53/28,458.96
  6. Step 6: Final answer
    x = 22,803.74

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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.