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Finding the Fourth Proportional to 7,781.16, 10,737.90 and 4,244.30

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Solution

The fourth proportional to 7,781.16, 10,737.90 and 4,244.30 is: 5,857.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.16 : 10,737.90 = 4,244.30 : x
  2. Step 2: Convert to fraction form
    7,781.16/10,737.90 = 4,244.30/x
  3. Step 3: Cross multiply
    7,781.16x = 10,737.90 × 4,244.30
  4. Step 4: Simplify right side
    7,781.16x = 45,574,815.28
  5. Step 5: Solve for x
    x = 45,574,815.28/7,781.16
  6. Step 6: Final answer
    x = 5,857.07

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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.