Home / 26,388.75-36,416.61-19,680.33

Finding the Fourth Proportional to 26,388.75, 36,416.61 and 19,680.33

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Solution

The fourth proportional to 26,388.75, 36,416.61 and 19,680.33 is: 27,158.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,388.75 : 36,416.61 = 19,680.33 : x
  2. Step 2: Convert to fraction form
    26,388.75/36,416.61 = 19,680.33/x
  3. Step 3: Cross multiply
    26,388.75x = 36,416.61 × 19,680.33
  4. Step 4: Simplify right side
    26,388.75x = 716,690,902.28
  5. Step 5: Solve for x
    x = 716,690,902.28/26,388.75
  6. Step 6: Final answer
    x = 27,158.96

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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.