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Finding the Fourth Proportional to 63,907.30, 95,788.95 and 30,643.30

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Solution

The fourth proportional to 63,907.30, 95,788.95 and 30,643.30 is: 45,930.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,907.30 : 95,788.95 = 30,643.30 : x
  2. Step 2: Convert to fraction form
    63,907.30/95,788.95 = 30,643.30/x
  3. Step 3: Cross multiply
    63,907.30x = 95,788.95 × 30,643.30
  4. Step 4: Simplify right side
    63,907.30x = 2,935,289,531.54
  5. Step 5: Solve for x
    x = 2,935,289,531.54/63,907.30
  6. Step 6: Final answer
    x = 45,930.43

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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.