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Finding the Fourth Proportional to 18,167.90, 27,246.98 and 5,020.99

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Solution

The fourth proportional to 18,167.90, 27,246.98 and 5,020.99 is: 7,530.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,167.90 : 27,246.98 = 5,020.99 : x
  2. Step 2: Convert to fraction form
    18,167.90/27,246.98 = 5,020.99/x
  3. Step 3: Cross multiply
    18,167.90x = 27,246.98 × 5,020.99
  4. Step 4: Simplify right side
    18,167.90x = 136,806,758.55
  5. Step 5: Solve for x
    x = 136,806,758.55/18,167.90
  6. Step 6: Final answer
    x = 7,530.14

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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.