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Finding the Fourth Proportional to 15,197.88, 22,774.14 and 12,443.88

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Solution

The fourth proportional to 15,197.88, 22,774.14 and 12,443.88 is: 18,647.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,197.88 : 22,774.14 = 12,443.88 : x
  2. Step 2: Convert to fraction form
    15,197.88/22,774.14 = 12,443.88/x
  3. Step 3: Cross multiply
    15,197.88x = 22,774.14 × 12,443.88
  4. Step 4: Simplify right side
    15,197.88x = 283,398,665.26
  5. Step 5: Solve for x
    x = 283,398,665.26/15,197.88
  6. Step 6: Final answer
    x = 18,647.25

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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.