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Finding the Fourth Proportional to 66,086.93, 91,197.51 and 35,871.62

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Solution

The fourth proportional to 66,086.93, 91,197.51 and 35,871.62 is: 49,501.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,086.93 : 91,197.51 = 35,871.62 : x
  2. Step 2: Convert to fraction form
    66,086.93/91,197.51 = 35,871.62/x
  3. Step 3: Cross multiply
    66,086.93x = 91,197.51 × 35,871.62
  4. Step 4: Simplify right side
    66,086.93x = 3,271,401,967.68
  5. Step 5: Solve for x
    x = 3,271,401,967.68/66,086.93
  6. Step 6: Final answer
    x = 49,501.50

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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.