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Finding the Fourth Proportional to 69,703.65, 96,198.72 and 39,079.65

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Solution

The fourth proportional to 69,703.65, 96,198.72 and 39,079.65 is: 53,934.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,703.65 : 96,198.72 = 39,079.65 : x
  2. Step 2: Convert to fraction form
    69,703.65/96,198.72 = 39,079.65/x
  3. Step 3: Cross multiply
    69,703.65x = 96,198.72 × 39,079.65
  4. Step 4: Simplify right side
    69,703.65x = 3,759,412,308.05
  5. Step 5: Solve for x
    x = 3,759,412,308.05/69,703.65
  6. Step 6: Final answer
    x = 53,934.22

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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.