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Finding the Fourth Proportional to 18,531.65, 27,797.54 and 4,491.62

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Solution

The fourth proportional to 18,531.65, 27,797.54 and 4,491.62 is: 6,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,531.65 : 27,797.54 = 4,491.62 : x
  2. Step 2: Convert to fraction form
    18,531.65/27,797.54 = 4,491.62/x
  3. Step 3: Cross multiply
    18,531.65x = 27,797.54 × 4,491.62
  4. Step 4: Simplify right side
    18,531.65x = 124,856,085.77
  5. Step 5: Solve for x
    x = 124,856,085.77/18,531.65
  6. Step 6: Final answer
    x = 6,737.45

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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.