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Finding the Fourth Proportional to 19,763.13, 29,637.55 and 6,612.42

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Solution

The fourth proportional to 19,763.13, 29,637.55 and 6,612.42 is: 9,916.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,763.13 : 29,637.55 = 6,612.42 : x
  2. Step 2: Convert to fraction form
    19,763.13/29,637.55 = 6,612.42/x
  3. Step 3: Cross multiply
    19,763.13x = 29,637.55 × 6,612.42
  4. Step 4: Simplify right side
    19,763.13x = 195,976,047.78
  5. Step 5: Solve for x
    x = 195,976,047.78/19,763.13
  6. Step 6: Final answer
    x = 9,916.25

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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.