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Finding the Fourth Proportional to 18,357.20, 27,516.60 and 10,024.40

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Solution

The fourth proportional to 18,357.20, 27,516.60 and 10,024.40 is: 15,026.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,357.20 : 27,516.60 = 10,024.40 : x
  2. Step 2: Convert to fraction form
    18,357.20/27,516.60 = 10,024.40/x
  3. Step 3: Cross multiply
    18,357.20x = 27,516.60 × 10,024.40
  4. Step 4: Simplify right side
    18,357.20x = 275,837,405.04
  5. Step 5: Solve for x
    x = 275,837,405.04/18,357.20
  6. Step 6: Final answer
    x = 15,026.12

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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.