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Finding the Fourth Proportional to 8,570.76, 11,832.81 and 5,591.76

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Solution

The fourth proportional to 8,570.76, 11,832.81 and 5,591.76 is: 7,720.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,570.76 : 11,832.81 = 5,591.76 : x
  2. Step 2: Convert to fraction form
    8,570.76/11,832.81 = 5,591.76/x
  3. Step 3: Cross multiply
    8,570.76x = 11,832.81 × 5,591.76
  4. Step 4: Simplify right side
    8,570.76x = 66,166,233.65
  5. Step 5: Solve for x
    x = 66,166,233.65/8,570.76
  6. Step 6: Final answer
    x = 7,720.00

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Half scale
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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.