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Finding the Fourth Proportional to 16,259.72, 24,364 and 12,571

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Solution

The fourth proportional to 16,259.72, 24,364 and 12,571 is: 18,836.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,259.72 : 24,364 = 12,571 : x
  2. Step 2: Convert to fraction form
    16,259.72/24,364 = 12,571/x
  3. Step 3: Cross multiply
    16,259.72x = 24,364 × 12,571
  4. Step 4: Simplify right side
    16,259.72x = 306,279,844
  5. Step 5: Solve for x
    x = 306,279,844/16,259.72
  6. Step 6: Final answer
    x = 18,836.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.