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Finding the Fourth Proportional to 21,668.59, 32,514.87 and 10,575.37

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Solution

The fourth proportional to 21,668.59, 32,514.87 and 10,575.37 is: 15,868.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668.59 : 32,514.87 = 10,575.37 : x
  2. Step 2: Convert to fraction form
    21,668.59/32,514.87 = 10,575.37/x
  3. Step 3: Cross multiply
    21,668.59x = 32,514.87 × 10,575.37
  4. Step 4: Simplify right side
    21,668.59x = 343,856,618.18
  5. Step 5: Solve for x
    x = 343,856,618.18/21,668.59
  6. Step 6: Final answer
    x = 15,868.90

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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.