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Finding the Fourth Proportional to 71,289.87, 98,401.94 and 41,095.38

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Solution

The fourth proportional to 71,289.87, 98,401.94 and 41,095.38 is: 56,724.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,289.87 : 98,401.94 = 41,095.38 : x
  2. Step 2: Convert to fraction form
    71,289.87/98,401.94 = 41,095.38/x
  3. Step 3: Cross multiply
    71,289.87x = 98,401.94 × 41,095.38
  4. Step 4: Simplify right side
    71,289.87x = 4,043,864,911.56
  5. Step 5: Solve for x
    x = 4,043,864,911.56/71,289.87
  6. Step 6: Final answer
    x = 56,724.26

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1.5x scale

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.