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Finding the Fourth Proportional to 9,858.41, 13,604.20 and 5,881.71

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Solution

The fourth proportional to 9,858.41, 13,604.20 and 5,881.71 is: 8,116.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,858.41 : 13,604.20 = 5,881.71 : x
  2. Step 2: Convert to fraction form
    9,858.41/13,604.20 = 5,881.71/x
  3. Step 3: Cross multiply
    9,858.41x = 13,604.20 × 5,881.71
  4. Step 4: Simplify right side
    9,858.41x = 80,016,028.58
  5. Step 5: Solve for x
    x = 80,016,028.58/9,858.41
  6. Step 6: Final answer
    x = 8,116.53

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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.