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Finding the Fourth Proportional to 56,129.97, 77,484.57 and 37,020.99

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Solution

The fourth proportional to 56,129.97, 77,484.57 and 37,020.99 is: 51,105.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,129.97 : 77,484.57 = 37,020.99 : x
  2. Step 2: Convert to fraction form
    56,129.97/77,484.57 = 37,020.99/x
  3. Step 3: Cross multiply
    56,129.97x = 77,484.57 × 37,020.99
  4. Step 4: Simplify right side
    56,129.97x = 2,868,555,491.12
  5. Step 5: Solve for x
    x = 2,868,555,491.12/56,129.97
  6. Step 6: Final answer
    x = 51,105.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.