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Finding the Fourth Proportional to 18,444.16, 27,663.36 and 8,053.12

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Solution

The fourth proportional to 18,444.16, 27,663.36 and 8,053.12 is: 12,078.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,444.16 : 27,663.36 = 8,053.12 : x
  2. Step 2: Convert to fraction form
    18,444.16/27,663.36 = 8,053.12/x
  3. Step 3: Cross multiply
    18,444.16x = 27,663.36 × 8,053.12
  4. Step 4: Simplify right side
    18,444.16x = 222,776,357.68
  5. Step 5: Solve for x
    x = 222,776,357.68/18,444.16
  6. Step 6: Final answer
    x = 12,078.42

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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.