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Finding the Fourth Proportional to 65,722.88, 90,697.51 and 35,914.88

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Solution

The fourth proportional to 65,722.88, 90,697.51 and 35,914.88 is: 49,562.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,722.88 : 90,697.51 = 35,914.88 : x
  2. Step 2: Convert to fraction form
    65,722.88/90,697.51 = 35,914.88/x
  3. Step 3: Cross multiply
    65,722.88x = 90,697.51 × 35,914.88
  4. Step 4: Simplify right side
    65,722.88x = 3,257,390,187.95
  5. Step 5: Solve for x
    x = 3,257,390,187.95/65,722.88
  6. Step 6: Final answer
    x = 49,562.50

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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.