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Finding the Fourth Proportional to 9,141.16, 12,614.79 and 4,949.41

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Solution

The fourth proportional to 9,141.16, 12,614.79 and 4,949.41 is: 6,830.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,141.16 : 12,614.79 = 4,949.41 : x
  2. Step 2: Convert to fraction form
    9,141.16/12,614.79 = 4,949.41/x
  3. Step 3: Cross multiply
    9,141.16x = 12,614.79 × 4,949.41
  4. Step 4: Simplify right side
    9,141.16x = 62,435,767.77
  5. Step 5: Solve for x
    x = 62,435,767.77/9,141.16
  6. Step 6: Final answer
    x = 6,830.18

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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.