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Finding the Fourth Proportional to 12,500.59, 18,760.12 and 5,926.80

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Solution

The fourth proportional to 12,500.59, 18,760.12 and 5,926.80 is: 8,894.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500.59 : 18,760.12 = 5,926.80 : x
  2. Step 2: Convert to fraction form
    12,500.59/18,760.12 = 5,926.80/x
  3. Step 3: Cross multiply
    12,500.59x = 18,760.12 × 5,926.80
  4. Step 4: Simplify right side
    12,500.59x = 111,187,479.22
  5. Step 5: Solve for x
    x = 111,187,479.22/12,500.59
  6. Step 6: Final answer
    x = 8,894.58

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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.