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Finding the Fourth Proportional to 25,150.50, 34,722.90 and 16,659.86

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Solution

The fourth proportional to 25,150.50, 34,722.90 and 16,659.86 is: 23,000.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,150.50 : 34,722.90 = 16,659.86 : x
  2. Step 2: Convert to fraction form
    25,150.50/34,722.90 = 16,659.86/x
  3. Step 3: Cross multiply
    25,150.50x = 34,722.90 × 16,659.86
  4. Step 4: Simplify right side
    25,150.50x = 578,478,652.79
  5. Step 5: Solve for x
    x = 578,478,652.79/25,150.50
  6. Step 6: Final answer
    x = 23,000.68

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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.