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Finding the Fourth Proportional to 25,793.93, 38,685.42 and 8,259.05

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Solution

The fourth proportional to 25,793.93, 38,685.42 and 8,259.05 is: 12,386.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,793.93 : 38,685.42 = 8,259.05 : x
  2. Step 2: Convert to fraction form
    25,793.93/38,685.42 = 8,259.05/x
  3. Step 3: Cross multiply
    25,793.93x = 38,685.42 × 8,259.05
  4. Step 4: Simplify right side
    25,793.93x = 319,504,818.05
  5. Step 5: Solve for x
    x = 319,504,818.05/25,793.93
  6. Step 6: Final answer
    x = 12,386.82

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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.