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Finding the Fourth Proportional to 9,365.16, 12,922.82 and 5,173.16

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Solution

The fourth proportional to 9,365.16, 12,922.82 and 5,173.16 is: 7,138.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,365.16 : 12,922.82 = 5,173.16 : x
  2. Step 2: Convert to fraction form
    9,365.16/12,922.82 = 5,173.16/x
  3. Step 3: Cross multiply
    9,365.16x = 12,922.82 × 5,173.16
  4. Step 4: Simplify right side
    9,365.16x = 66,851,815.51
  5. Step 5: Solve for x
    x = 66,851,815.51/9,365.16
  6. Step 6: Final answer
    x = 7,138.35

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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.