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Finding the Fourth Proportional to 35,297.30, 48,691.88 and 28,590.50

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Solution

The fourth proportional to 35,297.30, 48,691.88 and 28,590.50 is: 39,439.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,297.30 : 48,691.88 = 28,590.50 : x
  2. Step 2: Convert to fraction form
    35,297.30/48,691.88 = 28,590.50/x
  3. Step 3: Cross multiply
    35,297.30x = 48,691.88 × 28,590.50
  4. Step 4: Simplify right side
    35,297.30x = 1,392,125,195.14
  5. Step 5: Solve for x
    x = 1,392,125,195.14/35,297.30
  6. Step 6: Final answer
    x = 39,439.99

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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.