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Finding the Fourth Proportional to 19,510.20, 29,265.30 and 15,622.20

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Solution

The fourth proportional to 19,510.20, 29,265.30 and 15,622.20 is: 23,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,510.20 : 29,265.30 = 15,622.20 : x
  2. Step 2: Convert to fraction form
    19,510.20/29,265.30 = 15,622.20/x
  3. Step 3: Cross multiply
    19,510.20x = 29,265.30 × 15,622.20
  4. Step 4: Simplify right side
    19,510.20x = 457,188,369.66
  5. Step 5: Solve for x
    x = 457,188,369.66/19,510.20
  6. Step 6: Final answer
    x = 23,433.30

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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.