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Finding the Fourth Proportional to 65,991.99, 91,053.18 and 37,312.23

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Solution

The fourth proportional to 65,991.99, 91,053.18 and 37,312.23 is: 51,481.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,991.99 : 91,053.18 = 37,312.23 : x
  2. Step 2: Convert to fraction form
    65,991.99/91,053.18 = 37,312.23/x
  3. Step 3: Cross multiply
    65,991.99x = 91,053.18 × 37,312.23
  4. Step 4: Simplify right side
    65,991.99x = 3,397,397,194.39
  5. Step 5: Solve for x
    x = 3,397,397,194.39/65,991.99
  6. Step 6: Final answer
    x = 51,481.96

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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.