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Finding the Fourth Proportional to 52,937.72, 73,055.78 and 30,581.72

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Solution

The fourth proportional to 52,937.72, 73,055.78 and 30,581.72 is: 42,203.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,937.72 : 73,055.78 = 30,581.72 : x
  2. Step 2: Convert to fraction form
    52,937.72/73,055.78 = 30,581.72/x
  3. Step 3: Cross multiply
    52,937.72x = 73,055.78 × 30,581.72
  4. Step 4: Simplify right side
    52,937.72x = 2,234,171,408.34
  5. Step 5: Solve for x
    x = 2,234,171,408.34/52,937.72
  6. Step 6: Final answer
    x = 42,203.77

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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.