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Finding the Fourth Proportional to 15,324.99, 21,150.95 and 14,324.44

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Solution

The fourth proportional to 15,324.99, 21,150.95 and 14,324.44 is: 19,770.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,324.99 : 21,150.95 = 14,324.44 : x
  2. Step 2: Convert to fraction form
    15,324.99/21,150.95 = 14,324.44/x
  3. Step 3: Cross multiply
    15,324.99x = 21,150.95 × 14,324.44
  4. Step 4: Simplify right side
    15,324.99x = 302,975,514.22
  5. Step 5: Solve for x
    x = 302,975,514.22/15,324.99
  6. Step 6: Final answer
    x = 19,770.03

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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.