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Finding the Fourth Proportional to 40,955.44, 61,452.96 and 19,913.44

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Solution

The fourth proportional to 40,955.44, 61,452.96 and 19,913.44 is: 29,879.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,955.44 : 61,452.96 = 19,913.44 : x
  2. Step 2: Convert to fraction form
    40,955.44/61,452.96 = 19,913.44/x
  3. Step 3: Cross multiply
    40,955.44x = 61,452.96 × 19,913.44
  4. Step 4: Simplify right side
    40,955.44x = 1,223,739,831.78
  5. Step 5: Solve for x
    x = 1,223,739,831.78/40,955.44
  6. Step 6: Final answer
    x = 29,879.79

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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.