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Finding the Fourth Proportional to 7,508.36, 11,313.21 and 6,220.76

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Solution

The fourth proportional to 7,508.36, 11,313.21 and 6,220.76 is: 9,373.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,508.36 : 11,313.21 = 6,220.76 : x
  2. Step 2: Convert to fraction form
    7,508.36/11,313.21 = 6,220.76/x
  3. Step 3: Cross multiply
    7,508.36x = 11,313.21 × 6,220.76
  4. Step 4: Simplify right side
    7,508.36x = 70,376,784.38
  5. Step 5: Solve for x
    x = 70,376,784.38/7,508.36
  6. Step 6: Final answer
    x = 9,373.13

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.