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Finding the Fourth Proportional to 31,071.25, 46,608.90 and 8,886.43

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Solution

The fourth proportional to 31,071.25, 46,608.90 and 8,886.43 is: 13,330.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,071.25 : 46,608.90 = 8,886.43 : x
  2. Step 2: Convert to fraction form
    31,071.25/46,608.90 = 8,886.43/x
  3. Step 3: Cross multiply
    31,071.25x = 46,608.90 × 8,886.43
  4. Step 4: Simplify right side
    31,071.25x = 414,186,727.23
  5. Step 5: Solve for x
    x = 414,186,727.23/31,071.25
  6. Step 6: Final answer
    x = 13,330.22

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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.