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Finding the Fourth Proportional to 36,468.40, 50,199.96 and 31,449.28

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Solution

The fourth proportional to 36,468.40, 50,199.96 and 31,449.28 is: 43,290.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,468.40 : 50,199.96 = 31,449.28 : x
  2. Step 2: Convert to fraction form
    36,468.40/50,199.96 = 31,449.28/x
  3. Step 3: Cross multiply
    36,468.40x = 50,199.96 × 31,449.28
  4. Step 4: Simplify right side
    36,468.40x = 1,578,752,598.03
  5. Step 5: Solve for x
    x = 1,578,752,598.03/36,468.40
  6. Step 6: Final answer
    x = 43,290.98

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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.