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Finding the Fourth Proportional to 57,768.81, 79,721.03 and 35,101.77

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Solution

The fourth proportional to 57,768.81, 79,721.03 and 35,101.77 is: 48,440.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,768.81 : 79,721.03 = 35,101.77 : x
  2. Step 2: Convert to fraction form
    57,768.81/79,721.03 = 35,101.77/x
  3. Step 3: Cross multiply
    57,768.81x = 79,721.03 × 35,101.77
  4. Step 4: Simplify right side
    57,768.81x = 2,798,349,083.71
  5. Step 5: Solve for x
    x = 2,798,349,083.71/57,768.81
  6. Step 6: Final answer
    x = 48,440.48

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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.