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Finding the Fourth Proportional to 40,411.80, 55,761.75 and 22,506.75

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Solution

The fourth proportional to 40,411.80, 55,761.75 and 22,506.75 is: 31,055.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,411.80 : 55,761.75 = 22,506.75 : x
  2. Step 2: Convert to fraction form
    40,411.80/55,761.75 = 22,506.75/x
  3. Step 3: Cross multiply
    40,411.80x = 55,761.75 × 22,506.75
  4. Step 4: Simplify right side
    40,411.80x = 1,255,015,766.81
  5. Step 5: Solve for x
    x = 1,255,015,766.81/40,411.80
  6. Step 6: Final answer
    x = 31,055.68

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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.