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Finding the Fourth Proportional to 15,793.19, 23,672.76 and 8,390.19

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Solution

The fourth proportional to 15,793.19, 23,672.76 and 8,390.19 is: 12,576.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,793.19 : 23,672.76 = 8,390.19 : x
  2. Step 2: Convert to fraction form
    15,793.19/23,672.76 = 8,390.19/x
  3. Step 3: Cross multiply
    15,793.19x = 23,672.76 × 8,390.19
  4. Step 4: Simplify right side
    15,793.19x = 198,618,922.76
  5. Step 5: Solve for x
    x = 198,618,922.76/15,793.19
  6. Step 6: Final answer
    x = 12,576.24

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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.