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Finding the Fourth Proportional to 10,392.88, 15,589.21 and 2,601.69

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Solution

The fourth proportional to 10,392.88, 15,589.21 and 2,601.69 is: 3,902.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,392.88 : 15,589.21 = 2,601.69 : x
  2. Step 2: Convert to fraction form
    10,392.88/15,589.21 = 2,601.69/x
  3. Step 3: Cross multiply
    10,392.88x = 15,589.21 × 2,601.69
  4. Step 4: Simplify right side
    10,392.88x = 40,558,291.76
  5. Step 5: Solve for x
    x = 40,558,291.76/10,392.88
  6. Step 6: Final answer
    x = 3,902.51

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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.