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Finding the Fourth Proportional to 52,910.67, 73,018.80 and 29,038.20

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Solution

The fourth proportional to 52,910.67, 73,018.80 and 29,038.20 is: 40,073.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,910.67 : 73,018.80 = 29,038.20 : x
  2. Step 2: Convert to fraction form
    52,910.67/73,018.80 = 29,038.20/x
  3. Step 3: Cross multiply
    52,910.67x = 73,018.80 × 29,038.20
  4. Step 4: Simplify right side
    52,910.67x = 2,120,334,518.16
  5. Step 5: Solve for x
    x = 2,120,334,518.16/52,910.67
  6. Step 6: Final answer
    x = 40,073.86

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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.