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Finding the Fourth Proportional to 25,899.75, 38,848.72 and 8,369.13

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Solution

The fourth proportional to 25,899.75, 38,848.72 and 8,369.13 is: 12,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,899.75 : 38,848.72 = 8,369.13 : x
  2. Step 2: Convert to fraction form
    25,899.75/38,848.72 = 8,369.13/x
  3. Step 3: Cross multiply
    25,899.75x = 38,848.72 × 8,369.13
  4. Step 4: Simplify right side
    25,899.75x = 325,129,988.01
  5. Step 5: Solve for x
    x = 325,129,988.01/25,899.75
  6. Step 6: Final answer
    x = 12,553.40

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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.