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Finding the Fourth Proportional to 68,551.84, 94,606.32 and 38,347.12

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Solution

The fourth proportional to 68,551.84, 94,606.32 and 38,347.12 is: 52,921.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,551.84 : 94,606.32 = 38,347.12 : x
  2. Step 2: Convert to fraction form
    68,551.84/94,606.32 = 38,347.12/x
  3. Step 3: Cross multiply
    68,551.84x = 94,606.32 × 38,347.12
  4. Step 4: Simplify right side
    68,551.84x = 3,627,879,905.80
  5. Step 5: Solve for x
    x = 3,627,879,905.80/68,551.84
  6. Step 6: Final answer
    x = 52,921.70

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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.