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Finding the Fourth Proportional to 17,953.76, 26,930.96 and 6,865.60

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Solution

The fourth proportional to 17,953.76, 26,930.96 and 6,865.60 is: 10,298.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,953.76 : 26,930.96 = 6,865.60 : x
  2. Step 2: Convert to fraction form
    17,953.76/26,930.96 = 6,865.60/x
  3. Step 3: Cross multiply
    17,953.76x = 26,930.96 × 6,865.60
  4. Step 4: Simplify right side
    17,953.76x = 184,897,198.98
  5. Step 5: Solve for x
    x = 184,897,198.98/17,953.76
  6. Step 6: Final answer
    x = 10,298.52

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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.