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Finding the Fourth Proportional to 18,626.88, 27,948.54 and 7,541.48

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Solution

The fourth proportional to 18,626.88, 27,948.54 and 7,541.48 is: 11,315.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,626.88 : 27,948.54 = 7,541.48 : x
  2. Step 2: Convert to fraction form
    18,626.88/27,948.54 = 7,541.48/x
  3. Step 3: Cross multiply
    18,626.88x = 27,948.54 × 7,541.48
  4. Step 4: Simplify right side
    18,626.88x = 210,773,355.44
  5. Step 5: Solve for x
    x = 210,773,355.44/18,626.88
  6. Step 6: Final answer
    x = 11,315.55

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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.