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Finding the Fourth Proportional to 31,651.66, 43,677.66 and 17,308.70

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Solution

The fourth proportional to 31,651.66, 43,677.66 and 17,308.70 is: 23,885.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,651.66 : 43,677.66 = 17,308.70 : x
  2. Step 2: Convert to fraction form
    31,651.66/43,677.66 = 17,308.70/x
  3. Step 3: Cross multiply
    31,651.66x = 43,677.66 × 17,308.70
  4. Step 4: Simplify right side
    31,651.66x = 756,003,208.71
  5. Step 5: Solve for x
    x = 756,003,208.71/31,651.66
  6. Step 6: Final answer
    x = 23,885.11

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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.