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Finding the Fourth Proportional to 48,590.96, 72,890.92 and 19,011.12

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Solution

The fourth proportional to 48,590.96, 72,890.92 and 19,011.12 is: 28,518.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,590.96 : 72,890.92 = 19,011.12 : x
  2. Step 2: Convert to fraction form
    48,590.96/72,890.92 = 19,011.12/x
  3. Step 3: Cross multiply
    48,590.96x = 72,890.92 × 19,011.12
  4. Step 4: Simplify right side
    48,590.96x = 1,385,738,027.03
  5. Step 5: Solve for x
    x = 1,385,738,027.03/48,590.96
  6. Step 6: Final answer
    x = 28,518.43

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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.