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Finding the Fourth Proportional to 52,911.60, 73,020.12 and 29,039.14

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Solution

The fourth proportional to 52,911.60, 73,020.12 and 29,039.14 is: 40,075.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,911.60 : 73,020.12 = 29,039.14 : x
  2. Step 2: Convert to fraction form
    52,911.60/73,020.12 = 29,039.14/x
  3. Step 3: Cross multiply
    52,911.60x = 73,020.12 × 29,039.14
  4. Step 4: Simplify right side
    52,911.60x = 2,120,441,487.50
  5. Step 5: Solve for x
    x = 2,120,441,487.50/52,911.60
  6. Step 6: Final answer
    x = 40,075.17

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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.