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Finding the Fourth Proportional to 8,697.50, 11,997.95 and 6,180.62

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Solution

The fourth proportional to 8,697.50, 11,997.95 and 6,180.62 is: 8,525.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.50 : 11,997.95 = 6,180.62 : x
  2. Step 2: Convert to fraction form
    8,697.50/11,997.95 = 6,180.62/x
  3. Step 3: Cross multiply
    8,697.50x = 11,997.95 × 6,180.62
  4. Step 4: Simplify right side
    8,697.50x = 74,154,738.83
  5. Step 5: Solve for x
    x = 74,154,738.83/8,697.50
  6. Step 6: Final answer
    x = 8,525.99

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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.