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Finding the Fourth Proportional to 14,129.96, 21,194.94 and 10,258.97

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Solution

The fourth proportional to 14,129.96, 21,194.94 and 10,258.97 is: 15,388.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.96 : 21,194.94 = 10,258.97 : x
  2. Step 2: Convert to fraction form
    14,129.96/21,194.94 = 10,258.97/x
  3. Step 3: Cross multiply
    14,129.96x = 21,194.94 × 10,258.97
  4. Step 4: Simplify right side
    14,129.96x = 217,438,147.64
  5. Step 5: Solve for x
    x = 217,438,147.64/14,129.96
  6. Step 6: Final answer
    x = 15,388.45

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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.