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Finding the Fourth Proportional to 63,691.19, 87,891.93 and 36,466.37

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Solution

The fourth proportional to 63,691.19, 87,891.93 and 36,466.37 is: 50,322.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,691.19 : 87,891.93 = 36,466.37 : x
  2. Step 2: Convert to fraction form
    63,691.19/87,891.93 = 36,466.37/x
  3. Step 3: Cross multiply
    63,691.19x = 87,891.93 × 36,466.37
  4. Step 4: Simplify right side
    63,691.19x = 3,205,099,995.87
  5. Step 5: Solve for x
    x = 3,205,099,995.87/63,691.19
  6. Step 6: Final answer
    x = 50,322.50

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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.