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Finding the Fourth Proportional to 40,179, 55,445.49 and 22,274.31

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Solution

The fourth proportional to 40,179, 55,445.49 and 22,274.31 is: 30,737.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,179 : 55,445.49 = 22,274.31 : x
  2. Step 2: Convert to fraction form
    40,179/55,445.49 = 22,274.31/x
  3. Step 3: Cross multiply
    40,179x = 55,445.49 × 22,274.31
  4. Step 4: Simplify right side
    40,179x = 1,235,010,032.36
  5. Step 5: Solve for x
    x = 1,235,010,032.36/40,179
  6. Step 6: Final answer
    x = 30,737.70

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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.