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Finding the Fourth Proportional to 34,959.90, 48,245.40 and 19,044.31

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Solution

The fourth proportional to 34,959.90, 48,245.40 and 19,044.31 is: 26,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,959.90 : 48,245.40 = 19,044.31 : x
  2. Step 2: Convert to fraction form
    34,959.90/48,245.40 = 19,044.31/x
  3. Step 3: Cross multiply
    34,959.90x = 48,245.40 × 19,044.31
  4. Step 4: Simplify right side
    34,959.90x = 918,800,353.67
  5. Step 5: Solve for x
    x = 918,800,353.67/34,959.90
  6. Step 6: Final answer
    x = 26,281.55

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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.