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Finding the Fourth Proportional to 8,623.93, 11,902.41 and 8,061.13

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Solution

The fourth proportional to 8,623.93, 11,902.41 and 8,061.13 is: 11,125.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,623.93 : 11,902.41 = 8,061.13 : x
  2. Step 2: Convert to fraction form
    8,623.93/11,902.41 = 8,061.13/x
  3. Step 3: Cross multiply
    8,623.93x = 11,902.41 × 8,061.13
  4. Step 4: Simplify right side
    8,623.93x = 95,946,874.32
  5. Step 5: Solve for x
    x = 95,946,874.32/8,623.93
  6. Step 6: Final answer
    x = 11,125.66

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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.