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Finding the Fourth Proportional to 9,365.93, 12,922.10 and 5,639.93

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Solution

The fourth proportional to 9,365.93, 12,922.10 and 5,639.93 is: 7,781.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,365.93 : 12,922.10 = 5,639.93 : x
  2. Step 2: Convert to fraction form
    9,365.93/12,922.10 = 5,639.93/x
  3. Step 3: Cross multiply
    9,365.93x = 12,922.10 × 5,639.93
  4. Step 4: Simplify right side
    9,365.93x = 72,879,716.25
  5. Step 5: Solve for x
    x = 72,879,716.25/9,365.93
  6. Step 6: Final answer
    x = 7,781.37

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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.