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Finding the Fourth Proportional to 7,493.40, 11,240.10 and 7,173.45

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Solution

The fourth proportional to 7,493.40, 11,240.10 and 7,173.45 is: 10,760.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,493.40 : 11,240.10 = 7,173.45 : x
  2. Step 2: Convert to fraction form
    7,493.40/11,240.10 = 7,173.45/x
  3. Step 3: Cross multiply
    7,493.40x = 11,240.10 × 7,173.45
  4. Step 4: Simplify right side
    7,493.40x = 80,630,295.35
  5. Step 5: Solve for x
    x = 80,630,295.35/7,493.40
  6. Step 6: Final answer
    x = 10,760.18

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