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Finding the Fourth Proportional to 8,736.03, 12,055.74 and 5,199.15

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Solution

The fourth proportional to 8,736.03, 12,055.74 and 5,199.15 is: 7,174.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.03 : 12,055.74 = 5,199.15 : x
  2. Step 2: Convert to fraction form
    8,736.03/12,055.74 = 5,199.15/x
  3. Step 3: Cross multiply
    8,736.03x = 12,055.74 × 5,199.15
  4. Step 4: Simplify right side
    8,736.03x = 62,679,600.62
  5. Step 5: Solve for x
    x = 62,679,600.62/8,736.03
  6. Step 6: Final answer
    x = 7,174.84

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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.