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Finding the Fourth Proportional to 25,867.76, 38,791.91 and 8,332.88

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Solution

The fourth proportional to 25,867.76, 38,791.91 and 8,332.88 is: 12,496.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,867.76 : 38,791.91 = 8,332.88 : x
  2. Step 2: Convert to fraction form
    25,867.76/38,791.91 = 8,332.88/x
  3. Step 3: Cross multiply
    25,867.76x = 38,791.91 × 8,332.88
  4. Step 4: Simplify right side
    25,867.76x = 323,248,157.87
  5. Step 5: Solve for x
    x = 323,248,157.87/25,867.76
  6. Step 6: Final answer
    x = 12,496.18

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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.