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Finding the Fourth Proportional to 45,765.70, 68,514.90 and 32,643.70

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Solution

The fourth proportional to 45,765.70, 68,514.90 and 32,643.70 is: 48,870.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,765.70 : 68,514.90 = 32,643.70 : x
  2. Step 2: Convert to fraction form
    45,765.70/68,514.90 = 32,643.70/x
  3. Step 3: Cross multiply
    45,765.70x = 68,514.90 × 32,643.70
  4. Step 4: Simplify right side
    45,765.70x = 2,236,579,841.13
  5. Step 5: Solve for x
    x = 2,236,579,841.13/45,765.70
  6. Step 6: Final answer
    x = 48,870.22

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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.