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Finding the Fourth Proportional to 8,607.74, 11,879.07 and 6,741.50

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Solution

The fourth proportional to 8,607.74, 11,879.07 and 6,741.50 is: 9,303.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,607.74 : 11,879.07 = 6,741.50 : x
  2. Step 2: Convert to fraction form
    8,607.74/11,879.07 = 6,741.50/x
  3. Step 3: Cross multiply
    8,607.74x = 11,879.07 × 6,741.50
  4. Step 4: Simplify right side
    8,607.74x = 80,082,750.41
  5. Step 5: Solve for x
    x = 80,082,750.41/8,607.74
  6. Step 6: Final answer
    x = 9,303.57

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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.