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Finding the Fourth Proportional to 69,697.31, 96,187.05 and 39,482.88

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Solution

The fourth proportional to 69,697.31, 96,187.05 and 39,482.88 is: 54,489.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,697.31 : 96,187.05 = 39,482.88 : x
  2. Step 2: Convert to fraction form
    69,697.31/96,187.05 = 39,482.88/x
  3. Step 3: Cross multiply
    69,697.31x = 96,187.05 × 39,482.88
  4. Step 4: Simplify right side
    69,697.31x = 3,797,741,604.64
  5. Step 5: Solve for x
    x = 3,797,741,604.64/69,697.31
  6. Step 6: Final answer
    x = 54,489.07

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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.