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Finding the Fourth Proportional to 34,719.60, 52,119.90 and 18,098.40

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Solution

The fourth proportional to 34,719.60, 52,119.90 and 18,098.40 is: 27,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,719.60 : 52,119.90 = 18,098.40 : x
  2. Step 2: Convert to fraction form
    34,719.60/52,119.90 = 18,098.40/x
  3. Step 3: Cross multiply
    34,719.60x = 52,119.90 × 18,098.40
  4. Step 4: Simplify right side
    34,719.60x = 943,286,798.16
  5. Step 5: Solve for x
    x = 943,286,798.16/34,719.60
  6. Step 6: Final answer
    x = 27,168.71

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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.