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Finding the Fourth Proportional to 65,901.69, 90,945.59 and 36,093.69

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Solution

The fourth proportional to 65,901.69, 90,945.59 and 36,093.69 is: 49,809.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,901.69 : 90,945.59 = 36,093.69 : x
  2. Step 2: Convert to fraction form
    65,901.69/90,945.59 = 36,093.69/x
  3. Step 3: Cross multiply
    65,901.69x = 90,945.59 × 36,093.69
  4. Step 4: Simplify right side
    65,901.69x = 3,282,561,751.86
  5. Step 5: Solve for x
    x = 3,282,561,751.86/65,901.69
  6. Step 6: Final answer
    x = 49,809.98

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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.