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Finding the Fourth Proportional to 66,919.91, 92,350.71 and 36,703.40

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Solution

The fourth proportional to 66,919.91, 92,350.71 and 36,703.40 is: 50,651.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,919.91 : 92,350.71 = 36,703.40 : x
  2. Step 2: Convert to fraction form
    66,919.91/92,350.71 = 36,703.40/x
  3. Step 3: Cross multiply
    66,919.91x = 92,350.71 × 36,703.40
  4. Step 4: Simplify right side
    66,919.91x = 3,389,584,587.66
  5. Step 5: Solve for x
    x = 3,389,584,587.66/66,919.91
  6. Step 6: Final answer
    x = 50,651.37

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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.