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Finding the Fourth Proportional to 65,902.92, 90,945.18 and 37,609.08

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Solution

The fourth proportional to 65,902.92, 90,945.18 and 37,609.08 is: 51,900.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,902.92 : 90,945.18 = 37,609.08 : x
  2. Step 2: Convert to fraction form
    65,902.92/90,945.18 = 37,609.08/x
  3. Step 3: Cross multiply
    65,902.92x = 90,945.18 × 37,609.08
  4. Step 4: Simplify right side
    65,902.92x = 3,420,364,550.23
  5. Step 5: Solve for x
    x = 3,420,364,550.23/65,902.92
  6. Step 6: Final answer
    x = 51,900.05

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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.