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Finding the Fourth Proportional to 13,792.28, 19,044.48 and 8,490.08

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Solution

The fourth proportional to 13,792.28, 19,044.48 and 8,490.08 is: 11,723.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,792.28 : 19,044.48 = 8,490.08 : x
  2. Step 2: Convert to fraction form
    13,792.28/19,044.48 = 8,490.08/x
  3. Step 3: Cross multiply
    13,792.28x = 19,044.48 × 8,490.08
  4. Step 4: Simplify right side
    13,792.28x = 161,689,158.76
  5. Step 5: Solve for x
    x = 161,689,158.76/13,792.28
  6. Step 6: Final answer
    x = 11,723.16

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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.