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Finding the Fourth Proportional to 19,218.92, 26,514.48 and 11,662.48

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Solution

The fourth proportional to 19,218.92, 26,514.48 and 11,662.48 is: 16,089.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.92 : 26,514.48 = 11,662.48 : x
  2. Step 2: Convert to fraction form
    19,218.92/26,514.48 = 11,662.48/x
  3. Step 3: Cross multiply
    19,218.92x = 26,514.48 × 11,662.48
  4. Step 4: Simplify right side
    19,218.92x = 309,224,592.71
  5. Step 5: Solve for x
    x = 309,224,592.71/19,218.92
  6. Step 6: Final answer
    x = 16,089.59

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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.