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Finding the Fourth Proportional to 10,866.78, 14,996.28 and 6,150.96

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Solution

The fourth proportional to 10,866.78, 14,996.28 and 6,150.96 is: 8,488.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,866.78 : 14,996.28 = 6,150.96 : x
  2. Step 2: Convert to fraction form
    10,866.78/14,996.28 = 6,150.96/x
  3. Step 3: Cross multiply
    10,866.78x = 14,996.28 × 6,150.96
  4. Step 4: Simplify right side
    10,866.78x = 92,241,518.43
  5. Step 5: Solve for x
    x = 92,241,518.43/10,866.78
  6. Step 6: Final answer
    x = 8,488.39

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Half scale
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Double scale
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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.