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Finding the Fourth Proportional to 32,747.20, 45,189.84 and 19,319.20

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Solution

The fourth proportional to 32,747.20, 45,189.84 and 19,319.20 is: 26,659.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,747.20 : 45,189.84 = 19,319.20 : x
  2. Step 2: Convert to fraction form
    32,747.20/45,189.84 = 19,319.20/x
  3. Step 3: Cross multiply
    32,747.20x = 45,189.84 × 19,319.20
  4. Step 4: Simplify right side
    32,747.20x = 873,031,556.93
  5. Step 5: Solve for x
    x = 873,031,556.93/32,747.20
  6. Step 6: Final answer
    x = 26,659.73

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.