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Finding the Fourth Proportional to 66,230.25, 91,401.73 and 39,024.47

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Solution

The fourth proportional to 66,230.25, 91,401.73 and 39,024.47 is: 53,856.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,230.25 : 91,401.73 = 39,024.47 : x
  2. Step 2: Convert to fraction form
    66,230.25/91,401.73 = 39,024.47/x
  3. Step 3: Cross multiply
    66,230.25x = 91,401.73 × 39,024.47
  4. Step 4: Simplify right side
    66,230.25x = 3,566,903,906.65
  5. Step 5: Solve for x
    x = 3,566,903,906.65/66,230.25
  6. Step 6: Final answer
    x = 53,856.11

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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.