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Finding the Fourth Proportional to 8,141.19, 11,230.79 and 5,483.99

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Solution

The fourth proportional to 8,141.19, 11,230.79 and 5,483.99 is: 7,565.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,141.19 : 11,230.79 = 5,483.99 : x
  2. Step 2: Convert to fraction form
    8,141.19/11,230.79 = 5,483.99/x
  3. Step 3: Cross multiply
    8,141.19x = 11,230.79 × 5,483.99
  4. Step 4: Simplify right side
    8,141.19x = 61,589,456.48
  5. Step 5: Solve for x
    x = 61,589,456.48/8,141.19
  6. Step 6: Final answer
    x = 7,565.17

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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.