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Finding the Fourth Proportional to 18,411.98, 27,629.34 and 8,024.54

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Solution

The fourth proportional to 18,411.98, 27,629.34 and 8,024.54 is: 12,041.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.98 : 27,629.34 = 8,024.54 : x
  2. Step 2: Convert to fraction form
    18,411.98/27,629.34 = 8,024.54/x
  3. Step 3: Cross multiply
    18,411.98x = 27,629.34 × 8,024.54
  4. Step 4: Simplify right side
    18,411.98x = 221,712,744.00
  5. Step 5: Solve for x
    x = 221,712,744.00/18,411.98
  6. Step 6: Final answer
    x = 12,041.77

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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.