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Finding the Fourth Proportional to 18,011.34, 27,016.98 and 4,863.69

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Solution

The fourth proportional to 18,011.34, 27,016.98 and 4,863.69 is: 7,295.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,011.34 : 27,016.98 = 4,863.69 : x
  2. Step 2: Convert to fraction form
    18,011.34/27,016.98 = 4,863.69/x
  3. Step 3: Cross multiply
    18,011.34x = 27,016.98 × 4,863.69
  4. Step 4: Simplify right side
    18,011.34x = 131,402,215.46
  5. Step 5: Solve for x
    x = 131,402,215.46/18,011.34
  6. Step 6: Final answer
    x = 7,295.53

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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.