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Finding the Fourth Proportional to 9,881.92, 14,822.91 and 3,639.23

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Solution

The fourth proportional to 9,881.92, 14,822.91 and 3,639.23 is: 5,458.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,881.92 : 14,822.91 = 3,639.23 : x
  2. Step 2: Convert to fraction form
    9,881.92/14,822.91 = 3,639.23/x
  3. Step 3: Cross multiply
    9,881.92x = 14,822.91 × 3,639.23
  4. Step 4: Simplify right side
    9,881.92x = 53,943,942.32
  5. Step 5: Solve for x
    x = 53,943,942.32/9,881.92
  6. Step 6: Final answer
    x = 5,458.85

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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.