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Finding the Fourth Proportional to 31,113.36, 46,672.46 and 15,326.88

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Solution

The fourth proportional to 31,113.36, 46,672.46 and 15,326.88 is: 22,991.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,113.36 : 46,672.46 = 15,326.88 : x
  2. Step 2: Convert to fraction form
    31,113.36/46,672.46 = 15,326.88/x
  3. Step 3: Cross multiply
    31,113.36x = 46,672.46 × 15,326.88
  4. Step 4: Simplify right side
    31,113.36x = 715,343,193.72
  5. Step 5: Solve for x
    x = 715,343,193.72/31,113.36
  6. Step 6: Final answer
    x = 22,991.51

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