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Finding the Fourth Proportional to 56,572.65, 84,797.01 and 28,447.83

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Solution

The fourth proportional to 56,572.65, 84,797.01 and 28,447.83 is: 42,640.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,572.65 : 84,797.01 = 28,447.83 : x
  2. Step 2: Convert to fraction form
    56,572.65/84,797.01 = 28,447.83/x
  3. Step 3: Cross multiply
    56,572.65x = 84,797.01 × 28,447.83
  4. Step 4: Simplify right side
    56,572.65x = 2,412,290,924.99
  5. Step 5: Solve for x
    x = 2,412,290,924.99/56,572.65
  6. Step 6: Final answer
    x = 42,640.59

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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.