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Finding the Fourth Proportional to 65,891.90, 90,937.34 and 37,601.84

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Solution

The fourth proportional to 65,891.90, 90,937.34 and 37,601.84 is: 51,894.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,891.90 : 90,937.34 = 37,601.84 : x
  2. Step 2: Convert to fraction form
    65,891.90/90,937.34 = 37,601.84/x
  3. Step 3: Cross multiply
    65,891.90x = 90,937.34 × 37,601.84
  4. Step 4: Simplify right side
    65,891.90x = 3,419,410,666.01
  5. Step 5: Solve for x
    x = 3,419,410,666.01/65,891.90
  6. Step 6: Final answer
    x = 51,894.25

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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.