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Finding the Fourth Proportional to 19,476.17, 29,202.55 and 7,615.82

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Solution

The fourth proportional to 19,476.17, 29,202.55 and 7,615.82 is: 11,419.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,476.17 : 29,202.55 = 7,615.82 : x
  2. Step 2: Convert to fraction form
    19,476.17/29,202.55 = 7,615.82/x
  3. Step 3: Cross multiply
    19,476.17x = 29,202.55 × 7,615.82
  4. Step 4: Simplify right side
    19,476.17x = 222,401,364.34
  5. Step 5: Solve for x
    x = 222,401,364.34/19,476.17
  6. Step 6: Final answer
    x = 11,419.15

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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.