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Finding the Fourth Proportional to 91,763.52, 126,647.84 and 51,493.56

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Solution

The fourth proportional to 91,763.52, 126,647.84 and 51,493.56 is: 71,069.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,763.52 : 126,647.84 = 51,493.56 : x
  2. Step 2: Convert to fraction form
    91,763.52/126,647.84 = 51,493.56/x
  3. Step 3: Cross multiply
    91,763.52x = 126,647.84 × 51,493.56
  4. Step 4: Simplify right side
    91,763.52x = 6,521,548,147.91
  5. Step 5: Solve for x
    x = 6,521,548,147.91/91,763.52
  6. Step 6: Final answer
    x = 71,069.07

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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.