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Finding the Fourth Proportional to 8,793.24, 13,189.86 and 7,415.43

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Solution

The fourth proportional to 8,793.24, 13,189.86 and 7,415.43 is: 11,123.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,793.24 : 13,189.86 = 7,415.43 : x
  2. Step 2: Convert to fraction form
    8,793.24/13,189.86 = 7,415.43/x
  3. Step 3: Cross multiply
    8,793.24x = 13,189.86 × 7,415.43
  4. Step 4: Simplify right side
    8,793.24x = 97,808,483.54
  5. Step 5: Solve for x
    x = 97,808,483.54/8,793.24
  6. Step 6: Final answer
    x = 11,123.15

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Similar ratio
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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.