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Finding the Fourth Proportional to 19,662.48, 29,491.56 and 6,514.56

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Solution

The fourth proportional to 19,662.48, 29,491.56 and 6,514.56 is: 9,771.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662.48 : 29,491.56 = 6,514.56 : x
  2. Step 2: Convert to fraction form
    19,662.48/29,491.56 = 6,514.56/x
  3. Step 3: Cross multiply
    19,662.48x = 29,491.56 × 6,514.56
  4. Step 4: Simplify right side
    19,662.48x = 192,124,537.11
  5. Step 5: Solve for x
    x = 192,124,537.11/19,662.48
  6. Step 6: Final answer
    x = 9,771.12

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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.