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Finding the Fourth Proportional to 10,365.70, 15,548.55 and 7,194.55

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Solution

The fourth proportional to 10,365.70, 15,548.55 and 7,194.55 is: 10,791.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,365.70 : 15,548.55 = 7,194.55 : x
  2. Step 2: Convert to fraction form
    10,365.70/15,548.55 = 7,194.55/x
  3. Step 3: Cross multiply
    10,365.70x = 15,548.55 × 7,194.55
  4. Step 4: Simplify right side
    10,365.70x = 111,864,820.40
  5. Step 5: Solve for x
    x = 111,864,820.40/10,365.70
  6. Step 6: Final answer
    x = 10,791.83

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Double scale
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Similar ratio
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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.