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Finding the Fourth Proportional to 34,680.80, 51,948.30 and 28,848.80

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Solution

The fourth proportional to 34,680.80, 51,948.30 and 28,848.80 is: 43,212.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,680.80 : 51,948.30 = 28,848.80 : x
  2. Step 2: Convert to fraction form
    34,680.80/51,948.30 = 28,848.80/x
  3. Step 3: Cross multiply
    34,680.80x = 51,948.30 × 28,848.80
  4. Step 4: Simplify right side
    34,680.80x = 1,498,646,117.04
  5. Step 5: Solve for x
    x = 1,498,646,117.04/34,680.80
  6. Step 6: Final answer
    x = 43,212.56

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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.