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Finding the Fourth Proportional to 69,703.44, 96,187.61 and 39,488.15

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Solution

The fourth proportional to 69,703.44, 96,187.61 and 39,488.15 is: 54,491.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,703.44 : 96,187.61 = 39,488.15 : x
  2. Step 2: Convert to fraction form
    69,703.44/96,187.61 = 39,488.15/x
  3. Step 3: Cross multiply
    69,703.44x = 96,187.61 × 39,488.15
  4. Step 4: Simplify right side
    69,703.44x = 3,798,270,093.44
  5. Step 5: Solve for x
    x = 3,798,270,093.44/69,703.44
  6. Step 6: Final answer
    x = 54,491.86

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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.