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Finding the Fourth Proportional to 36,649.95, 54,973.91 and 11,691.50

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Solution

The fourth proportional to 36,649.95, 54,973.91 and 11,691.50 is: 17,536.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,649.95 : 54,973.91 = 11,691.50 : x
  2. Step 2: Convert to fraction form
    36,649.95/54,973.91 = 11,691.50/x
  3. Step 3: Cross multiply
    36,649.95x = 54,973.91 × 11,691.50
  4. Step 4: Simplify right side
    36,649.95x = 642,727,135.44
  5. Step 5: Solve for x
    x = 642,727,135.44/36,649.95
  6. Step 6: Final answer
    x = 17,536.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.