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Finding the Fourth Proportional to 9,954.41, 13,737.69 and 5,479.14

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Solution

The fourth proportional to 9,954.41, 13,737.69 and 5,479.14 is: 7,561.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,954.41 : 13,737.69 = 5,479.14 : x
  2. Step 2: Convert to fraction form
    9,954.41/13,737.69 = 5,479.14/x
  3. Step 3: Cross multiply
    9,954.41x = 13,737.69 × 5,479.14
  4. Step 4: Simplify right side
    9,954.41x = 75,270,726.79
  5. Step 5: Solve for x
    x = 75,270,726.79/9,954.41
  6. Step 6: Final answer
    x = 7,561.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.