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Finding the Fourth Proportional to 17,553.76, 26,330.64 and 7,028.56

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Solution

The fourth proportional to 17,553.76, 26,330.64 and 7,028.56 is: 10,542.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,553.76 : 26,330.64 = 7,028.56 : x
  2. Step 2: Convert to fraction form
    17,553.76/26,330.64 = 7,028.56/x
  3. Step 3: Cross multiply
    17,553.76x = 26,330.64 × 7,028.56
  4. Step 4: Simplify right side
    17,553.76x = 185,066,483.08
  5. Step 5: Solve for x
    x = 185,066,483.08/17,553.76
  6. Step 6: Final answer
    x = 10,542.84

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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.