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Finding the Fourth Proportional to 68,755.17, 94,886.52 and 38,540.51

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Solution

The fourth proportional to 68,755.17, 94,886.52 and 38,540.51 is: 53,188.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,755.17 : 94,886.52 = 38,540.51 : x
  2. Step 2: Convert to fraction form
    68,755.17/94,886.52 = 38,540.51/x
  3. Step 3: Cross multiply
    68,755.17x = 94,886.52 × 38,540.51
  4. Step 4: Simplify right side
    68,755.17x = 3,656,974,398.49
  5. Step 5: Solve for x
    x = 3,656,974,398.49/68,755.17
  6. Step 6: Final answer
    x = 53,188.36

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1.5x scale

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.