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Finding the Fourth Proportional to 30,359.78, 45,773.27 and 29,815.46

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Solution

The fourth proportional to 30,359.78, 45,773.27 and 29,815.46 is: 44,952.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,359.78 : 45,773.27 = 29,815.46 : x
  2. Step 2: Convert to fraction form
    30,359.78/45,773.27 = 29,815.46/x
  3. Step 3: Cross multiply
    30,359.78x = 45,773.27 × 29,815.46
  4. Step 4: Simplify right side
    30,359.78x = 1,364,751,100.75
  5. Step 5: Solve for x
    x = 1,364,751,100.75/30,359.78
  6. Step 6: Final answer
    x = 44,952.60

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.