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Finding the Fourth Proportional to 57,911.77, 86,703.80 and 36,799.47

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Solution

The fourth proportional to 57,911.77, 86,703.80 and 36,799.47 is: 55,095.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,911.77 : 86,703.80 = 36,799.47 : x
  2. Step 2: Convert to fraction form
    57,911.77/86,703.80 = 36,799.47/x
  3. Step 3: Cross multiply
    57,911.77x = 86,703.80 × 36,799.47
  4. Step 4: Simplify right side
    57,911.77x = 3,190,653,909.99
  5. Step 5: Solve for x
    x = 3,190,653,909.99/57,911.77
  6. Step 6: Final answer
    x = 55,095.09

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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.