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Finding the Fourth Proportional to 8,131.66, 11,221.94 and 4,595.10

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Solution

The fourth proportional to 8,131.66, 11,221.94 and 4,595.10 is: 6,341.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.66 : 11,221.94 = 4,595.10 : x
  2. Step 2: Convert to fraction form
    8,131.66/11,221.94 = 4,595.10/x
  3. Step 3: Cross multiply
    8,131.66x = 11,221.94 × 4,595.10
  4. Step 4: Simplify right side
    8,131.66x = 51,565,947.98
  5. Step 5: Solve for x
    x = 51,565,947.98/8,131.66
  6. Step 6: Final answer
    x = 6,341.38

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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.