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Finding the Fourth Proportional to 35,402.58, 48,855.20 and 19,486.70

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Solution

The fourth proportional to 35,402.58, 48,855.20 and 19,486.70 is: 26,891.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,402.58 : 48,855.20 = 19,486.70 : x
  2. Step 2: Convert to fraction form
    35,402.58/48,855.20 = 19,486.70/x
  3. Step 3: Cross multiply
    35,402.58x = 48,855.20 × 19,486.70
  4. Step 4: Simplify right side
    35,402.58x = 952,026,284.13
  5. Step 5: Solve for x
    x = 952,026,284.13/35,402.58
  6. Step 6: Final answer
    x = 26,891.44

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.