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Finding the Fourth Proportional to 62,787.98, 86,643.32 and 34,491.84

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Solution

The fourth proportional to 62,787.98, 86,643.32 and 34,491.84 is: 47,596.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,787.98 : 86,643.32 = 34,491.84 : x
  2. Step 2: Convert to fraction form
    62,787.98/86,643.32 = 34,491.84/x
  3. Step 3: Cross multiply
    62,787.98x = 86,643.32 × 34,491.84
  4. Step 4: Simplify right side
    62,787.98x = 2,988,487,530.51
  5. Step 5: Solve for x
    x = 2,988,487,530.51/62,787.98
  6. Step 6: Final answer
    x = 47,596.49

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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.