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Finding the Fourth Proportional to 16,387.85, 24,586.98 and 6,905.18

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Solution

The fourth proportional to 16,387.85, 24,586.98 and 6,905.18 is: 10,359.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,387.85 : 24,586.98 = 6,905.18 : x
  2. Step 2: Convert to fraction form
    16,387.85/24,586.98 = 6,905.18/x
  3. Step 3: Cross multiply
    16,387.85x = 24,586.98 × 6,905.18
  4. Step 4: Simplify right side
    16,387.85x = 169,777,522.56
  5. Step 5: Solve for x
    x = 169,777,522.56/16,387.85
  6. Step 6: Final answer
    x = 10,359.96

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1.5x scale

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.