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Finding the Fourth Proportional to 8,975.25, 12,386.13 and 5,616.99

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Solution

The fourth proportional to 8,975.25, 12,386.13 and 5,616.99 is: 7,751.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.25 : 12,386.13 = 5,616.99 : x
  2. Step 2: Convert to fraction form
    8,975.25/12,386.13 = 5,616.99/x
  3. Step 3: Cross multiply
    8,975.25x = 12,386.13 × 5,616.99
  4. Step 4: Simplify right side
    8,975.25x = 69,572,768.35
  5. Step 5: Solve for x
    x = 69,572,768.35/8,975.25
  6. Step 6: Final answer
    x = 7,751.62

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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.