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Finding the Fourth Proportional to 22,097.76, 30,508.92 and 13,719.12

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Solution

The fourth proportional to 22,097.76, 30,508.92 and 13,719.12 is: 18,941.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,097.76 : 30,508.92 = 13,719.12 : x
  2. Step 2: Convert to fraction form
    22,097.76/30,508.92 = 13,719.12/x
  3. Step 3: Cross multiply
    22,097.76x = 30,508.92 × 13,719.12
  4. Step 4: Simplify right side
    22,097.76x = 418,555,534.55
  5. Step 5: Solve for x
    x = 418,555,534.55/22,097.76
  6. Step 6: Final answer
    x = 18,941.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.