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Finding the Fourth Proportional to 7,790.73, 10,750.78 and 4,253.25

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Solution

The fourth proportional to 7,790.73, 10,750.78 and 4,253.25 is: 5,869.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.73 : 10,750.78 = 4,253.25 : x
  2. Step 2: Convert to fraction form
    7,790.73/10,750.78 = 4,253.25/x
  3. Step 3: Cross multiply
    7,790.73x = 10,750.78 × 4,253.25
  4. Step 4: Simplify right side
    7,790.73x = 45,725,755.04
  5. Step 5: Solve for x
    x = 45,725,755.04/7,790.73
  6. Step 6: Final answer
    x = 5,869.25

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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.