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Finding the Fourth Proportional to 16,938.61, 25,423.53 and 8,624.62

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Solution

The fourth proportional to 16,938.61, 25,423.53 and 8,624.62 is: 12,944.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,938.61 : 25,423.53 = 8,624.62 : x
  2. Step 2: Convert to fraction form
    16,938.61/25,423.53 = 8,624.62/x
  3. Step 3: Cross multiply
    16,938.61x = 25,423.53 × 8,624.62
  4. Step 4: Simplify right side
    16,938.61x = 219,268,115.07
  5. Step 5: Solve for x
    x = 219,268,115.07/16,938.61
  6. Step 6: Final answer
    x = 12,944.87

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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.