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Finding the Fourth Proportional to 6,902.45, 9,526.26 and 5,139.08

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Solution

The fourth proportional to 6,902.45, 9,526.26 and 5,139.08 is: 7,092.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,902.45 : 9,526.26 = 5,139.08 : x
  2. Step 2: Convert to fraction form
    6,902.45/9,526.26 = 5,139.08/x
  3. Step 3: Cross multiply
    6,902.45x = 9,526.26 × 5,139.08
  4. Step 4: Simplify right side
    6,902.45x = 48,956,212.24
  5. Step 5: Solve for x
    x = 48,956,212.24/6,902.45
  6. Step 6: Final answer
    x = 7,092.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.