Home / 19,998.75-27,598.28-11,166.75

Finding the Fourth Proportional to 19,998.75, 27,598.28 and 11,166.75

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Solution

The fourth proportional to 19,998.75, 27,598.28 and 11,166.75 is: 15,410.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,998.75 : 27,598.28 = 11,166.75 : x
  2. Step 2: Convert to fraction form
    19,998.75/27,598.28 = 11,166.75/x
  3. Step 3: Cross multiply
    19,998.75x = 27,598.28 × 11,166.75
  4. Step 4: Simplify right side
    19,998.75x = 308,183,037.36
  5. Step 5: Solve for x
    x = 308,183,037.36/19,998.75
  6. Step 6: Final answer
    x = 15,410.12

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.