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Finding the Fourth Proportional to 67,988.52, 93,813.38 and 39,297.52

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Solution

The fourth proportional to 67,988.52, 93,813.38 and 39,297.52 is: 54,224.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,988.52 : 93,813.38 = 39,297.52 : x
  2. Step 2: Convert to fraction form
    67,988.52/93,813.38 = 39,297.52/x
  3. Step 3: Cross multiply
    67,988.52x = 93,813.38 × 39,297.52
  4. Step 4: Simplify right side
    67,988.52x = 3,686,633,176.82
  5. Step 5: Solve for x
    x = 3,686,633,176.82/67,988.52
  6. Step 6: Final answer
    x = 54,224.35

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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.