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Finding the Fourth Proportional to 5,607.44, 7,720.68 and 5,089.04

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Solution

The fourth proportional to 5,607.44, 7,720.68 and 5,089.04 is: 7,006.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.44 : 7,720.68 = 5,089.04 : x
  2. Step 2: Convert to fraction form
    5,607.44/7,720.68 = 5,089.04/x
  3. Step 3: Cross multiply
    5,607.44x = 7,720.68 × 5,089.04
  4. Step 4: Simplify right side
    5,607.44x = 39,290,849.35
  5. Step 5: Solve for x
    x = 39,290,849.35/5,607.44
  6. Step 6: Final answer
    x = 7,006.91

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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.