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Finding the Fourth Proportional to 69,972.67, 96,558.64 and 39,753.80

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Solution

The fourth proportional to 69,972.67, 96,558.64 and 39,753.80 is: 54,858.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,972.67 : 96,558.64 = 39,753.80 : x
  2. Step 2: Convert to fraction form
    69,972.67/96,558.64 = 39,753.80/x
  3. Step 3: Cross multiply
    69,972.67x = 96,558.64 × 39,753.80
  4. Step 4: Simplify right side
    69,972.67x = 3,838,572,573.51
  5. Step 5: Solve for x
    x = 3,838,572,573.51/69,972.67
  6. Step 6: Final answer
    x = 54,858.17

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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.