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Finding the Fourth Proportional to 48,789.08, 73,181.90 and 20,691.08

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Solution

The fourth proportional to 48,789.08, 73,181.90 and 20,691.08 is: 31,035.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,789.08 : 73,181.90 = 20,691.08 : x
  2. Step 2: Convert to fraction form
    48,789.08/73,181.90 = 20,691.08/x
  3. Step 3: Cross multiply
    48,789.08x = 73,181.90 × 20,691.08
  4. Step 4: Simplify right side
    48,789.08x = 1,514,212,547.45
  5. Step 5: Solve for x
    x = 1,514,212,547.45/48,789.08
  6. Step 6: Final answer
    x = 31,035.89

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1.5x scale

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.