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Finding the Fourth Proportional to 7,205.54, 10,808.31 and 5,564.48

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Solution

The fourth proportional to 7,205.54, 10,808.31 and 5,564.48 is: 8,346.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,205.54 : 10,808.31 = 5,564.48 : x
  2. Step 2: Convert to fraction form
    7,205.54/10,808.31 = 5,564.48/x
  3. Step 3: Cross multiply
    7,205.54x = 10,808.31 × 5,564.48
  4. Step 4: Simplify right side
    7,205.54x = 60,142,624.83
  5. Step 5: Solve for x
    x = 60,142,624.83/7,205.54
  6. Step 6: Final answer
    x = 8,346.72

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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.