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Finding the Fourth Proportional to 13,600.06, 18,770.04 and 7,551.69

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Solution

The fourth proportional to 13,600.06, 18,770.04 and 7,551.69 is: 10,422.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.06 : 18,770.04 = 7,551.69 : x
  2. Step 2: Convert to fraction form
    13,600.06/18,770.04 = 7,551.69/x
  3. Step 3: Cross multiply
    13,600.06x = 18,770.04 × 7,551.69
  4. Step 4: Simplify right side
    13,600.06x = 141,745,523.37
  5. Step 5: Solve for x
    x = 141,745,523.37/13,600.06
  6. Step 6: Final answer
    x = 10,422.42

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Half scale
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Double scale
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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.