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Finding the Fourth Proportional to 18,011.52, 27,019.98 and 6,322.68

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Solution

The fourth proportional to 18,011.52, 27,019.98 and 6,322.68 is: 9,484.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,011.52 : 27,019.98 = 6,322.68 : x
  2. Step 2: Convert to fraction form
    18,011.52/27,019.98 = 6,322.68/x
  3. Step 3: Cross multiply
    18,011.52x = 27,019.98 × 6,322.68
  4. Step 4: Simplify right side
    18,011.52x = 170,838,687.15
  5. Step 5: Solve for x
    x = 170,838,687.15/18,011.52
  6. Step 6: Final answer
    x = 9,484.97

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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.