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Finding the Fourth Proportional to 40,447.44, 55,837.44 and 31,352.76

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Solution

The fourth proportional to 40,447.44, 55,837.44 and 31,352.76 is: 43,282.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,447.44 : 55,837.44 = 31,352.76 : x
  2. Step 2: Convert to fraction form
    40,447.44/55,837.44 = 31,352.76/x
  3. Step 3: Cross multiply
    40,447.44x = 55,837.44 × 31,352.76
  4. Step 4: Simplify right side
    40,447.44x = 1,750,657,855.33
  5. Step 5: Solve for x
    x = 1,750,657,855.33/40,447.44
  6. Step 6: Final answer
    x = 43,282.29

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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.