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Finding the Fourth Proportional to 65,179.07, 89,947.11 and 35,371.07

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Solution

The fourth proportional to 65,179.07, 89,947.11 and 35,371.07 is: 48,812.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,179.07 : 89,947.11 = 35,371.07 : x
  2. Step 2: Convert to fraction form
    65,179.07/89,947.11 = 35,371.07/x
  3. Step 3: Cross multiply
    65,179.07x = 89,947.11 × 35,371.07
  4. Step 4: Simplify right side
    65,179.07x = 3,181,525,524.11
  5. Step 5: Solve for x
    x = 3,181,525,524.11/65,179.07
  6. Step 6: Final answer
    x = 48,812.07

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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.