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Finding the Fourth Proportional to 25,793.20, 38,614.20 and 19,248.40

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Solution

The fourth proportional to 25,793.20, 38,614.20 and 19,248.40 is: 28,816.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,793.20 : 38,614.20 = 19,248.40 : x
  2. Step 2: Convert to fraction form
    25,793.20/38,614.20 = 19,248.40/x
  3. Step 3: Cross multiply
    25,793.20x = 38,614.20 × 19,248.40
  4. Step 4: Simplify right side
    25,793.20x = 743,261,567.28
  5. Step 5: Solve for x
    x = 743,261,567.28/25,793.20
  6. Step 6: Final answer
    x = 28,816.18

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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.