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Finding the Fourth Proportional to 8,724.93, 12,072.08 and 7,608.18

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Solution

The fourth proportional to 8,724.93, 12,072.08 and 7,608.18 is: 10,526.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.93 : 12,072.08 = 7,608.18 : x
  2. Step 2: Convert to fraction form
    8,724.93/12,072.08 = 7,608.18/x
  3. Step 3: Cross multiply
    8,724.93x = 12,072.08 × 7,608.18
  4. Step 4: Simplify right side
    8,724.93x = 91,846,557.61
  5. Step 5: Solve for x
    x = 91,846,557.61/8,724.93
  6. Step 6: Final answer
    x = 10,526.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.