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Finding the Fourth Proportional to 8,331.70, 12,497.55 and 4,443.70

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Solution

The fourth proportional to 8,331.70, 12,497.55 and 4,443.70 is: 6,665.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.70 : 12,497.55 = 4,443.70 : x
  2. Step 2: Convert to fraction form
    8,331.70/12,497.55 = 4,443.70/x
  3. Step 3: Cross multiply
    8,331.70x = 12,497.55 × 4,443.70
  4. Step 4: Simplify right side
    8,331.70x = 55,535,362.94
  5. Step 5: Solve for x
    x = 55,535,362.94/8,331.70
  6. Step 6: Final answer
    x = 6,665.55

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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.