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Finding the Fourth Proportional to 39,178.92, 54,066.96 and 22,411.92

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Solution

The fourth proportional to 39,178.92, 54,066.96 and 22,411.92 is: 30,928.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,178.92 : 54,066.96 = 22,411.92 : x
  2. Step 2: Convert to fraction form
    39,178.92/54,066.96 = 22,411.92/x
  3. Step 3: Cross multiply
    39,178.92x = 54,066.96 × 22,411.92
  4. Step 4: Simplify right side
    39,178.92x = 1,211,744,382.16
  5. Step 5: Solve for x
    x = 1,211,744,382.16/39,178.92
  6. Step 6: Final answer
    x = 30,928.48

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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.