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Finding the Fourth Proportional to 31,451.44, 43,402.98 and 17,303.98

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Solution

The fourth proportional to 31,451.44, 43,402.98 and 17,303.98 is: 23,879.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,451.44 : 43,402.98 = 17,303.98 : x
  2. Step 2: Convert to fraction form
    31,451.44/43,402.98 = 17,303.98/x
  3. Step 3: Cross multiply
    31,451.44x = 43,402.98 × 17,303.98
  4. Step 4: Simplify right side
    31,451.44x = 751,044,297.86
  5. Step 5: Solve for x
    x = 751,044,297.86/31,451.44
  6. Step 6: Final answer
    x = 23,879.49

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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.