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Finding the Fourth Proportional to 48,495.31, 66,932.72 and 30,354.45

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Solution

The fourth proportional to 48,495.31, 66,932.72 and 30,354.45 is: 41,894.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,495.31 : 66,932.72 = 30,354.45 : x
  2. Step 2: Convert to fraction form
    48,495.31/66,932.72 = 30,354.45/x
  3. Step 3: Cross multiply
    48,495.31x = 66,932.72 × 30,354.45
  4. Step 4: Simplify right side
    48,495.31x = 2,031,705,416.17
  5. Step 5: Solve for x
    x = 2,031,705,416.17/48,495.31
  6. Step 6: Final answer
    x = 41,894.89

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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.