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Finding the Fourth Proportional to 74,070.52, 111,078.21 and 26,672.78

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Solution

The fourth proportional to 74,070.52, 111,078.21 and 26,672.78 is: 39,999.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,070.52 : 111,078.21 = 26,672.78 : x
  2. Step 2: Convert to fraction form
    74,070.52/111,078.21 = 26,672.78/x
  3. Step 3: Cross multiply
    74,070.52x = 111,078.21 × 26,672.78
  4. Step 4: Simplify right side
    74,070.52x = 2,962,764,658.12
  5. Step 5: Solve for x
    x = 2,962,764,658.12/74,070.52
  6. Step 6: Final answer
    x = 39,999.24

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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.