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Finding the Fourth Proportional to 34,986.67, 48,282.92 and 19,881.90

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Solution

The fourth proportional to 34,986.67, 48,282.92 and 19,881.90 is: 27,437.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,986.67 : 48,282.92 = 19,881.90 : x
  2. Step 2: Convert to fraction form
    34,986.67/48,282.92 = 19,881.90/x
  3. Step 3: Cross multiply
    34,986.67x = 48,282.92 × 19,881.90
  4. Step 4: Simplify right side
    34,986.67x = 959,956,258.15
  5. Step 5: Solve for x
    x = 959,956,258.15/34,986.67
  6. Step 6: Final answer
    x = 27,437.77

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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.