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Finding the Fourth Proportional to 19,348.20, 29,022.30 and 15,460.20

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Solution

The fourth proportional to 19,348.20, 29,022.30 and 15,460.20 is: 23,190.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,348.20 : 29,022.30 = 15,460.20 : x
  2. Step 2: Convert to fraction form
    19,348.20/29,022.30 = 15,460.20/x
  3. Step 3: Cross multiply
    19,348.20x = 29,022.30 × 15,460.20
  4. Step 4: Simplify right side
    19,348.20x = 448,690,562.46
  5. Step 5: Solve for x
    x = 448,690,562.46/19,348.20
  6. Step 6: Final answer
    x = 23,190.30

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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.