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Finding the Fourth Proportional to 8,348.48, 11,554.08 and 7,173.44

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Solution

The fourth proportional to 8,348.48, 11,554.08 and 7,173.44 is: 9,927.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348.48 : 11,554.08 = 7,173.44 : x
  2. Step 2: Convert to fraction form
    8,348.48/11,554.08 = 7,173.44/x
  3. Step 3: Cross multiply
    8,348.48x = 11,554.08 × 7,173.44
  4. Step 4: Simplify right side
    8,348.48x = 82,882,499.64
  5. Step 5: Solve for x
    x = 82,882,499.64/8,348.48
  6. Step 6: Final answer
    x = 9,927.86

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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.