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Finding the Fourth Proportional to 10,290.99, 15,436.56 and 2,896.19

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Solution

The fourth proportional to 10,290.99, 15,436.56 and 2,896.19 is: 4,344.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290.99 : 15,436.56 = 2,896.19 : x
  2. Step 2: Convert to fraction form
    10,290.99/15,436.56 = 2,896.19/x
  3. Step 3: Cross multiply
    10,290.99x = 15,436.56 × 2,896.19
  4. Step 4: Simplify right side
    10,290.99x = 44,707,210.71
  5. Step 5: Solve for x
    x = 44,707,210.71/10,290.99
  6. Step 6: Final answer
    x = 4,344.31

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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.