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Finding the Fourth Proportional to 74,959.22, 112,438.73 and 19,555.22

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Solution

The fourth proportional to 74,959.22, 112,438.73 and 19,555.22 is: 29,332.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,959.22 : 112,438.73 = 19,555.22 : x
  2. Step 2: Convert to fraction form
    74,959.22/112,438.73 = 19,555.22/x
  3. Step 3: Cross multiply
    74,959.22x = 112,438.73 × 19,555.22
  4. Step 4: Simplify right side
    74,959.22x = 2,198,764,431.66
  5. Step 5: Solve for x
    x = 2,198,764,431.66/74,959.22
  6. Step 6: Final answer
    x = 29,332.81

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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.