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Finding the Fourth Proportional to 35,291.39, 48,699.90 and 19,374.48

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Solution

The fourth proportional to 35,291.39, 48,699.90 and 19,374.48 is: 26,735.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,291.39 : 48,699.90 = 19,374.48 : x
  2. Step 2: Convert to fraction form
    35,291.39/48,699.90 = 19,374.48/x
  3. Step 3: Cross multiply
    35,291.39x = 48,699.90 × 19,374.48
  4. Step 4: Simplify right side
    35,291.39x = 943,535,238.55
  5. Step 5: Solve for x
    x = 943,535,238.55/35,291.39
  6. Step 6: Final answer
    x = 26,735.57

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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.