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Finding the Fourth Proportional to 12,240.63, 18,346.86 and 5,652.97

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Solution

The fourth proportional to 12,240.63, 18,346.86 and 5,652.97 is: 8,472.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.63 : 18,346.86 = 5,652.97 : x
  2. Step 2: Convert to fraction form
    12,240.63/18,346.86 = 5,652.97/x
  3. Step 3: Cross multiply
    12,240.63x = 18,346.86 × 5,652.97
  4. Step 4: Simplify right side
    12,240.63x = 103,714,249.17
  5. Step 5: Solve for x
    x = 103,714,249.17/12,240.63
  6. Step 6: Final answer
    x = 8,472.95

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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.