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Finding the Fourth Proportional to 7,800.95, 10,766.31 and 4,444.97

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Solution

The fourth proportional to 7,800.95, 10,766.31 and 4,444.97 is: 6,134.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800.95 : 10,766.31 = 4,444.97 : x
  2. Step 2: Convert to fraction form
    7,800.95/10,766.31 = 4,444.97/x
  3. Step 3: Cross multiply
    7,800.95x = 10,766.31 × 4,444.97
  4. Step 4: Simplify right side
    7,800.95x = 47,855,887.80
  5. Step 5: Solve for x
    x = 47,855,887.80/7,800.95
  6. Step 6: Final answer
    x = 6,134.63

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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.