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Finding the Fourth Proportional to 8,573.24, 12,859.86 and 7,491.08

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Solution

The fourth proportional to 8,573.24, 12,859.86 and 7,491.08 is: 11,236.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,573.24 : 12,859.86 = 7,491.08 : x
  2. Step 2: Convert to fraction form
    8,573.24/12,859.86 = 7,491.08/x
  3. Step 3: Cross multiply
    8,573.24x = 12,859.86 × 7,491.08
  4. Step 4: Simplify right side
    8,573.24x = 96,334,240.05
  5. Step 5: Solve for x
    x = 96,334,240.05/8,573.24
  6. Step 6: Final answer
    x = 11,236.62

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.