Home / 53,251.17-79,876.76-18,191.13

Finding the Fourth Proportional to 53,251.17, 79,876.76 and 18,191.13

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Solution

The fourth proportional to 53,251.17, 79,876.76 and 18,191.13 is: 27,286.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,251.17 : 79,876.76 = 18,191.13 : x
  2. Step 2: Convert to fraction form
    53,251.17/79,876.76 = 18,191.13/x
  3. Step 3: Cross multiply
    53,251.17x = 79,876.76 × 18,191.13
  4. Step 4: Simplify right side
    53,251.17x = 1,453,048,525.14
  5. Step 5: Solve for x
    x = 1,453,048,525.14/53,251.17
  6. Step 6: Final answer
    x = 27,286.70

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