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Finding the Fourth Proportional to 68,752.60, 94,881.17 and 38,538.51

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Solution

The fourth proportional to 68,752.60, 94,881.17 and 38,538.51 is: 53,184.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,752.60 : 94,881.17 = 38,538.51 : x
  2. Step 2: Convert to fraction form
    68,752.60/94,881.17 = 38,538.51/x
  3. Step 3: Cross multiply
    68,752.60x = 94,881.17 × 38,538.51
  4. Step 4: Simplify right side
    68,752.60x = 3,656,578,926.25
  5. Step 5: Solve for x
    x = 3,656,578,926.25/68,752.60
  6. Step 6: Final answer
    x = 53,184.59

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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.