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Finding the Fourth Proportional to 7,230.67, 9,980.15 and 4,088.68

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Solution

The fourth proportional to 7,230.67, 9,980.15 and 4,088.68 is: 5,643.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,230.67 : 9,980.15 = 4,088.68 : x
  2. Step 2: Convert to fraction form
    7,230.67/9,980.15 = 4,088.68/x
  3. Step 3: Cross multiply
    7,230.67x = 9,980.15 × 4,088.68
  4. Step 4: Simplify right side
    7,230.67x = 40,805,594.31
  5. Step 5: Solve for x
    x = 40,805,594.31/7,230.67
  6. Step 6: Final answer
    x = 5,643.41

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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.