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Finding the Fourth Proportional to 34,721.04, 47,879.20 and 29,701.87

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Solution

The fourth proportional to 34,721.04, 47,879.20 and 29,701.87 is: 40,957.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,721.04 : 47,879.20 = 29,701.87 : x
  2. Step 2: Convert to fraction form
    34,721.04/47,879.20 = 29,701.87/x
  3. Step 3: Cross multiply
    34,721.04x = 47,879.20 × 29,701.87
  4. Step 4: Simplify right side
    34,721.04x = 1,422,101,774.10
  5. Step 5: Solve for x
    x = 1,422,101,774.10/34,721.04
  6. Step 6: Final answer
    x = 40,957.93

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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.