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Finding the Fourth Proportional to 65,090.88, 89,823.36 and 36,794.88

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Solution

The fourth proportional to 65,090.88, 89,823.36 and 36,794.88 is: 50,775.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,090.88 : 89,823.36 = 36,794.88 : x
  2. Step 2: Convert to fraction form
    65,090.88/89,823.36 = 36,794.88/x
  3. Step 3: Cross multiply
    65,090.88x = 89,823.36 × 36,794.88
  4. Step 4: Simplify right side
    65,090.88x = 3,305,039,752.40
  5. Step 5: Solve for x
    x = 3,305,039,752.40/65,090.88
  6. Step 6: Final answer
    x = 50,775.77

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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.