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Finding the Fourth Proportional to 40,507.62, 55,903.67 and 22,361.90

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Solution

The fourth proportional to 40,507.62, 55,903.67 and 22,361.90 is: 30,861.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,507.62 : 55,903.67 = 22,361.90 : x
  2. Step 2: Convert to fraction form
    40,507.62/55,903.67 = 22,361.90/x
  3. Step 3: Cross multiply
    40,507.62x = 55,903.67 × 22,361.90
  4. Step 4: Simplify right side
    40,507.62x = 1,250,111,886.85
  5. Step 5: Solve for x
    x = 1,250,111,886.85/40,507.62
  6. Step 6: Final answer
    x = 30,861.15

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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.