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Finding the Fourth Proportional to 12,337.76, 17,027.28 and 6,749.60

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Solution

The fourth proportional to 12,337.76, 17,027.28 and 6,749.60 is: 9,315.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,337.76 : 17,027.28 = 6,749.60 : x
  2. Step 2: Convert to fraction form
    12,337.76/17,027.28 = 6,749.60/x
  3. Step 3: Cross multiply
    12,337.76x = 17,027.28 × 6,749.60
  4. Step 4: Simplify right side
    12,337.76x = 114,927,329.09
  5. Step 5: Solve for x
    x = 114,927,329.09/12,337.76
  6. Step 6: Final answer
    x = 9,315.09

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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.