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Finding the Fourth Proportional to 19,332.40, 29,020.20 and 18,063.40

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Solution

The fourth proportional to 19,332.40, 29,020.20 and 18,063.40 is: 27,115.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,332.40 : 29,020.20 = 18,063.40 : x
  2. Step 2: Convert to fraction form
    19,332.40/29,020.20 = 18,063.40/x
  3. Step 3: Cross multiply
    19,332.40x = 29,020.20 × 18,063.40
  4. Step 4: Simplify right side
    19,332.40x = 524,203,480.68
  5. Step 5: Solve for x
    x = 524,203,480.68/19,332.40
  6. Step 6: Final answer
    x = 27,115.28

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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.