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Finding the Fourth Proportional to 18,159.19, 27,239.79 and 6,472.41

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Solution

The fourth proportional to 18,159.19, 27,239.79 and 6,472.41 is: 9,708.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,159.19 : 27,239.79 = 6,472.41 : x
  2. Step 2: Convert to fraction form
    18,159.19/27,239.79 = 6,472.41/x
  3. Step 3: Cross multiply
    18,159.19x = 27,239.79 × 6,472.41
  4. Step 4: Simplify right side
    18,159.19x = 176,307,011.32
  5. Step 5: Solve for x
    x = 176,307,011.32/18,159.19
  6. Step 6: Final answer
    x = 9,708.97

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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.