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Finding the Fourth Proportional to 8,559.68, 11,803.20 and 8,533.76

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Solution

The fourth proportional to 8,559.68, 11,803.20 and 8,533.76 is: 11,767.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.68 : 11,803.20 = 8,533.76 : x
  2. Step 2: Convert to fraction form
    8,559.68/11,803.20 = 8,533.76/x
  3. Step 3: Cross multiply
    8,559.68x = 11,803.20 × 8,533.76
  4. Step 4: Simplify right side
    8,559.68x = 100,725,676.03
  5. Step 5: Solve for x
    x = 100,725,676.03/8,559.68
  6. Step 6: Final answer
    x = 11,767.46

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Double 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.