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Finding the Fourth Proportional to 38,656.49, 57,985.28 and 10,954.49

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Solution

The fourth proportional to 38,656.49, 57,985.28 and 10,954.49 is: 16,431.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,656.49 : 57,985.28 = 10,954.49 : x
  2. Step 2: Convert to fraction form
    38,656.49/57,985.28 = 10,954.49/x
  3. Step 3: Cross multiply
    38,656.49x = 57,985.28 × 10,954.49
  4. Step 4: Simplify right side
    38,656.49x = 635,199,115.13
  5. Step 5: Solve for x
    x = 635,199,115.13/38,656.49
  6. Step 6: Final answer
    x = 16,431.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.