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Finding the Fourth Proportional to 8,999.15, 13,503.28 and 6,071.31

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Solution

The fourth proportional to 8,999.15, 13,503.28 and 6,071.31 is: 9,110.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.15 : 13,503.28 = 6,071.31 : x
  2. Step 2: Convert to fraction form
    8,999.15/13,503.28 = 6,071.31/x
  3. Step 3: Cross multiply
    8,999.15x = 13,503.28 × 6,071.31
  4. Step 4: Simplify right side
    8,999.15x = 81,982,571.03
  5. Step 5: Solve for x
    x = 81,982,571.03/8,999.15
  6. Step 6: Final answer
    x = 9,110.03

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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.