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Finding the Fourth Proportional to 19,143.14, 26,410.05 and 14,119.31

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Solution

The fourth proportional to 19,143.14, 26,410.05 and 14,119.31 is: 19,479.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.14 : 26,410.05 = 14,119.31 : x
  2. Step 2: Convert to fraction form
    19,143.14/26,410.05 = 14,119.31/x
  3. Step 3: Cross multiply
    19,143.14x = 26,410.05 × 14,119.31
  4. Step 4: Simplify right side
    19,143.14x = 372,891,749.09
  5. Step 5: Solve for x
    x = 372,891,749.09/19,143.14
  6. Step 6: Final answer
    x = 19,479.14

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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.