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Finding the Fourth Proportional to 65,945.70, 91,036.60 and 37,645.92

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Solution

The fourth proportional to 65,945.70, 91,036.60 and 37,645.92 is: 51,969.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,945.70 : 91,036.60 = 37,645.92 : x
  2. Step 2: Convert to fraction form
    65,945.70/91,036.60 = 37,645.92/x
  3. Step 3: Cross multiply
    65,945.70x = 91,036.60 × 37,645.92
  4. Step 4: Simplify right side
    65,945.70x = 3,427,156,560.67
  5. Step 5: Solve for x
    x = 3,427,156,560.67/65,945.70
  6. Step 6: Final answer
    x = 51,969.37

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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.