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Finding the Fourth Proportional to 7,909.41, 11,882.51 and 7,484.25

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Solution

The fourth proportional to 7,909.41, 11,882.51 and 7,484.25 is: 11,243.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.41 : 11,882.51 = 7,484.25 : x
  2. Step 2: Convert to fraction form
    7,909.41/11,882.51 = 7,484.25/x
  3. Step 3: Cross multiply
    7,909.41x = 11,882.51 × 7,484.25
  4. Step 4: Simplify right side
    7,909.41x = 88,931,710.67
  5. Step 5: Solve for x
    x = 88,931,710.67/7,909.41
  6. Step 6: Final answer
    x = 11,243.78

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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.