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Finding the Fourth Proportional to 65,805.04, 90,813.08 and 35,997.04

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Solution

The fourth proportional to 65,805.04, 90,813.08 and 35,997.04 is: 49,677.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,805.04 : 90,813.08 = 35,997.04 : x
  2. Step 2: Convert to fraction form
    65,805.04/90,813.08 = 35,997.04/x
  3. Step 3: Cross multiply
    65,805.04x = 90,813.08 × 35,997.04
  4. Step 4: Simplify right side
    65,805.04x = 3,269,002,073.28
  5. Step 5: Solve for x
    x = 3,269,002,073.28/65,805.04
  6. Step 6: Final answer
    x = 49,677.08

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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.