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Finding the Fourth Proportional to 68,636.84, 94,670.01 and 62,989.82

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Solution

The fourth proportional to 68,636.84, 94,670.01 and 62,989.82 is: 86,881.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,636.84 : 94,670.01 = 62,989.82 : x
  2. Step 2: Convert to fraction form
    68,636.84/94,670.01 = 62,989.82/x
  3. Step 3: Cross multiply
    68,636.84x = 94,670.01 × 62,989.82
  4. Step 4: Simplify right side
    68,636.84x = 5,963,246,850.16
  5. Step 5: Solve for x
    x = 5,963,246,850.16/68,636.84
  6. Step 6: Final answer
    x = 86,881.14

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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.