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Finding the Fourth Proportional to 69,975.72, 96,511.87 and 48,473.58

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Solution

The fourth proportional to 69,975.72, 96,511.87 and 48,473.58 is: 66,855.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,975.72 : 96,511.87 = 48,473.58 : x
  2. Step 2: Convert to fraction form
    69,975.72/96,511.87 = 48,473.58/x
  3. Step 3: Cross multiply
    69,975.72x = 96,511.87 × 48,473.58
  4. Step 4: Simplify right side
    69,975.72x = 4,678,275,126.47
  5. Step 5: Solve for x
    x = 4,678,275,126.47/69,975.72
  6. Step 6: Final answer
    x = 66,855.70

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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.