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Finding the Fourth Proportional to 7,559.68, 11,365.44 and 6,989.44

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Solution

The fourth proportional to 7,559.68, 11,365.44 and 6,989.44 is: 10,508.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,559.68 : 11,365.44 = 6,989.44 : x
  2. Step 2: Convert to fraction form
    7,559.68/11,365.44 = 6,989.44/x
  3. Step 3: Cross multiply
    7,559.68x = 11,365.44 × 6,989.44
  4. Step 4: Simplify right side
    7,559.68x = 79,438,060.95
  5. Step 5: Solve for x
    x = 79,438,060.95/7,559.68
  6. Step 6: Final answer
    x = 10,508.12

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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.