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Finding the Fourth Proportional to 8,695.50, 11,997.74 and 5,868.11

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Solution

The fourth proportional to 8,695.50, 11,997.74 and 5,868.11 is: 8,096.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,695.50 : 11,997.74 = 5,868.11 : x
  2. Step 2: Convert to fraction form
    8,695.50/11,997.74 = 5,868.11/x
  3. Step 3: Cross multiply
    8,695.50x = 11,997.74 × 5,868.11
  4. Step 4: Simplify right side
    8,695.50x = 70,403,968.74
  5. Step 5: Solve for x
    x = 70,403,968.74/8,695.50
  6. Step 6: Final answer
    x = 8,096.60

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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.