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Finding the Fourth Proportional to 65,697.26, 90,662.20 and 35,482.58

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Solution

The fourth proportional to 65,697.26, 90,662.20 and 35,482.58 is: 48,965.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,697.26 : 90,662.20 = 35,482.58 : x
  2. Step 2: Convert to fraction form
    65,697.26/90,662.20 = 35,482.58/x
  3. Step 3: Cross multiply
    65,697.26x = 90,662.20 × 35,482.58
  4. Step 4: Simplify right side
    65,697.26x = 3,216,928,562.44
  5. Step 5: Solve for x
    x = 3,216,928,562.44/65,697.26
  6. Step 6: Final answer
    x = 48,965.95

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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.