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Finding the Fourth Proportional to 8,491.76, 12,733.54 and 3,560.07

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Solution

The fourth proportional to 8,491.76, 12,733.54 and 3,560.07 is: 5,338.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491.76 : 12,733.54 = 3,560.07 : x
  2. Step 2: Convert to fraction form
    8,491.76/12,733.54 = 3,560.07/x
  3. Step 3: Cross multiply
    8,491.76x = 12,733.54 × 3,560.07
  4. Step 4: Simplify right side
    8,491.76x = 45,332,332.60
  5. Step 5: Solve for x
    x = 45,332,332.60/8,491.76
  6. Step 6: Final answer
    x = 5,338.39

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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.