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Finding the Fourth Proportional to 66,239.76, 91,409.99 and 36,024.43

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Solution

The fourth proportional to 66,239.76, 91,409.99 and 36,024.43 is: 49,713.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,239.76 : 91,409.99 = 36,024.43 : x
  2. Step 2: Convert to fraction form
    66,239.76/91,409.99 = 36,024.43/x
  3. Step 3: Cross multiply
    66,239.76x = 91,409.99 × 36,024.43
  4. Step 4: Simplify right side
    66,239.76x = 3,292,992,605.93
  5. Step 5: Solve for x
    x = 3,292,992,605.93/66,239.76
  6. Step 6: Final answer
    x = 49,713.23

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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.