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Finding the Fourth Proportional to 19,456.87, 29,024.08 and 18,883.29

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Solution

The fourth proportional to 19,456.87, 29,024.08 and 18,883.29 is: 28,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,456.87 : 29,024.08 = 18,883.29 : x
  2. Step 2: Convert to fraction form
    19,456.87/29,024.08 = 18,883.29/x
  3. Step 3: Cross multiply
    19,456.87x = 29,024.08 × 18,883.29
  4. Step 4: Simplify right side
    19,456.87x = 548,070,025.21
  5. Step 5: Solve for x
    x = 548,070,025.21/19,456.87
  6. Step 6: Final answer
    x = 28,168.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.