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Finding the Fourth Proportional to 12,373.73, 18,543.99 and 5,785.73

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Solution

The fourth proportional to 12,373.73, 18,543.99 and 5,785.73 is: 8,670.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,373.73 : 18,543.99 = 5,785.73 : x
  2. Step 2: Convert to fraction form
    12,373.73/18,543.99 = 5,785.73/x
  3. Step 3: Cross multiply
    12,373.73x = 18,543.99 × 5,785.73
  4. Step 4: Simplify right side
    12,373.73x = 107,290,519.26
  5. Step 5: Solve for x
    x = 107,290,519.26/12,373.73
  6. Step 6: Final answer
    x = 8,670.83

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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.