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Finding the Fourth Proportional to 66,593.80, 91,900.47 and 36,378.91

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Solution

The fourth proportional to 66,593.80, 91,900.47 and 36,378.91 is: 50,203.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,593.80 : 91,900.47 = 36,378.91 : x
  2. Step 2: Convert to fraction form
    66,593.80/91,900.47 = 36,378.91/x
  3. Step 3: Cross multiply
    66,593.80x = 91,900.47 × 36,378.91
  4. Step 4: Simplify right side
    66,593.80x = 3,343,238,927.09
  5. Step 5: Solve for x
    x = 3,343,238,927.09/66,593.80
  6. Step 6: Final answer
    x = 50,203.46

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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.