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Finding the Fourth Proportional to 60,709.77, 91,020.92 and 37,287

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Solution

The fourth proportional to 60,709.77, 91,020.92 and 37,287 is: 55,903.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,709.77 : 91,020.92 = 37,287 : x
  2. Step 2: Convert to fraction form
    60,709.77/91,020.92 = 37,287/x
  3. Step 3: Cross multiply
    60,709.77x = 91,020.92 × 37,287
  4. Step 4: Simplify right side
    60,709.77x = 3,393,896,857.61
  5. Step 5: Solve for x
    x = 3,393,896,857.61/60,709.77
  6. Step 6: Final answer
    x = 55,903.64

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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.