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Finding the Fourth Proportional to 52,721.78, 79,004.91 and 29,341.94

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Solution

The fourth proportional to 52,721.78, 79,004.91 and 29,341.94 is: 43,969.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,721.78 : 79,004.91 = 29,341.94 : x
  2. Step 2: Convert to fraction form
    52,721.78/79,004.91 = 29,341.94/x
  3. Step 3: Cross multiply
    52,721.78x = 79,004.91 × 29,341.94
  4. Step 4: Simplify right side
    52,721.78x = 2,318,157,328.93
  5. Step 5: Solve for x
    x = 2,318,157,328.93/52,721.78
  6. Step 6: Final answer
    x = 43,969.63

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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.