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Finding the Fourth Proportional to 40,361.14, 55,699.14 and 22,456.90

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Solution

The fourth proportional to 40,361.14, 55,699.14 and 22,456.90 is: 30,990.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,361.14 : 55,699.14 = 22,456.90 : x
  2. Step 2: Convert to fraction form
    40,361.14/55,699.14 = 22,456.90/x
  3. Step 3: Cross multiply
    40,361.14x = 55,699.14 × 22,456.90
  4. Step 4: Simplify right side
    40,361.14x = 1,250,830,017.07
  5. Step 5: Solve for x
    x = 1,250,830,017.07/40,361.14
  6. Step 6: Final answer
    x = 30,990.95

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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.