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Finding the Fourth Proportional to 9,515.16, 13,129.74 and 5,322.36

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Solution

The fourth proportional to 9,515.16, 13,129.74 and 5,322.36 is: 7,344.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,515.16 : 13,129.74 = 5,322.36 : x
  2. Step 2: Convert to fraction form
    9,515.16/13,129.74 = 5,322.36/x
  3. Step 3: Cross multiply
    9,515.16x = 13,129.74 × 5,322.36
  4. Step 4: Simplify right side
    9,515.16x = 69,881,202.99
  5. Step 5: Solve for x
    x = 69,881,202.99/9,515.16
  6. Step 6: Final answer
    x = 7,344.20

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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.