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Finding the Fourth Proportional to 40,394.97, 55,729.98 and 40,332.60

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Solution

The fourth proportional to 40,394.97, 55,729.98 and 40,332.60 is: 55,643.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,394.97 : 55,729.98 = 40,332.60 : x
  2. Step 2: Convert to fraction form
    40,394.97/55,729.98 = 40,332.60/x
  3. Step 3: Cross multiply
    40,394.97x = 55,729.98 × 40,332.60
  4. Step 4: Simplify right side
    40,394.97x = 2,247,734,991.35
  5. Step 5: Solve for x
    x = 2,247,734,991.35/40,394.97
  6. Step 6: Final answer
    x = 55,643.93

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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.