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Finding the Fourth Proportional to 13,027.54, 17,978.98 and 7,362.94

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Solution

The fourth proportional to 13,027.54, 17,978.98 and 7,362.94 is: 10,161.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,027.54 : 17,978.98 = 7,362.94 : x
  2. Step 2: Convert to fraction form
    13,027.54/17,978.98 = 7,362.94/x
  3. Step 3: Cross multiply
    13,027.54x = 17,978.98 × 7,362.94
  4. Step 4: Simplify right side
    13,027.54x = 132,378,151.00
  5. Step 5: Solve for x
    x = 132,378,151.00/13,027.54
  6. Step 6: Final answer
    x = 10,161.41

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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.