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Finding the Fourth Proportional to 40,954.80, 61,432.22 and 11,372.64

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Solution

The fourth proportional to 40,954.80, 61,432.22 and 11,372.64 is: 17,058.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,954.80 : 61,432.22 = 11,372.64 : x
  2. Step 2: Convert to fraction form
    40,954.80/61,432.22 = 11,372.64/x
  3. Step 3: Cross multiply
    40,954.80x = 61,432.22 × 11,372.64
  4. Step 4: Simplify right side
    40,954.80x = 698,646,465.60
  5. Step 5: Solve for x
    x = 698,646,465.60/40,954.80
  6. Step 6: Final answer
    x = 17,058.96

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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.