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Finding the Fourth Proportional to 25,888.23, 38,827.89 and 8,358.21

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Solution

The fourth proportional to 25,888.23, 38,827.89 and 8,358.21 is: 12,535.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,888.23 : 38,827.89 = 8,358.21 : x
  2. Step 2: Convert to fraction form
    25,888.23/38,827.89 = 8,358.21/x
  3. Step 3: Cross multiply
    25,888.23x = 38,827.89 × 8,358.21
  4. Step 4: Simplify right side
    25,888.23x = 324,531,658.48
  5. Step 5: Solve for x
    x = 324,531,658.48/25,888.23
  6. Step 6: Final answer
    x = 12,535.88

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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.