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Finding the Fourth Proportional to 29,315.82, 43,980.30 and 9,326.46

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Solution

The fourth proportional to 29,315.82, 43,980.30 and 9,326.46 is: 13,991.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,315.82 : 43,980.30 = 9,326.46 : x
  2. Step 2: Convert to fraction form
    29,315.82/43,980.30 = 9,326.46/x
  3. Step 3: Cross multiply
    29,315.82x = 43,980.30 × 9,326.46
  4. Step 4: Simplify right side
    29,315.82x = 410,180,508.74
  5. Step 5: Solve for x
    x = 410,180,508.74/29,315.82
  6. Step 6: Final answer
    x = 13,991.78

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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.