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Finding the Fourth Proportional to 12,573.74, 17,358.68 and 8,600.68

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Solution

The fourth proportional to 12,573.74, 17,358.68 and 8,600.68 is: 11,873.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.74 : 17,358.68 = 8,600.68 : x
  2. Step 2: Convert to fraction form
    12,573.74/17,358.68 = 8,600.68/x
  3. Step 3: Cross multiply
    12,573.74x = 17,358.68 × 8,600.68
  4. Step 4: Simplify right side
    12,573.74x = 149,296,451.90
  5. Step 5: Solve for x
    x = 149,296,451.90/12,573.74
  6. Step 6: Final answer
    x = 11,873.67

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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.