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Finding the Fourth Proportional to 25,145.61, 37,723.02 and 8,279.58

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Solution

The fourth proportional to 25,145.61, 37,723.02 and 8,279.58 is: 12,420.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,145.61 : 37,723.02 = 8,279.58 : x
  2. Step 2: Convert to fraction form
    25,145.61/37,723.02 = 8,279.58/x
  3. Step 3: Cross multiply
    25,145.61x = 37,723.02 × 8,279.58
  4. Step 4: Simplify right side
    25,145.61x = 312,330,761.93
  5. Step 5: Solve for x
    x = 312,330,761.93/25,145.61
  6. Step 6: Final answer
    x = 12,420.89

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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.