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Finding the Fourth Proportional to 8,776.93, 12,112.19 and 4,798.09

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Solution

The fourth proportional to 8,776.93, 12,112.19 and 4,798.09 is: 6,621.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,776.93 : 12,112.19 = 4,798.09 : x
  2. Step 2: Convert to fraction form
    8,776.93/12,112.19 = 4,798.09/x
  3. Step 3: Cross multiply
    8,776.93x = 12,112.19 × 4,798.09
  4. Step 4: Simplify right side
    8,776.93x = 58,115,353.73
  5. Step 5: Solve for x
    x = 58,115,353.73/8,776.93
  6. Step 6: Final answer
    x = 6,621.38

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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.