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Finding the Fourth Proportional to 14,986.26, 20,682.94 and 9,021.16

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Solution

The fourth proportional to 14,986.26, 20,682.94 and 9,021.16 is: 12,450.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,986.26 : 20,682.94 = 9,021.16 : x
  2. Step 2: Convert to fraction form
    14,986.26/20,682.94 = 9,021.16/x
  3. Step 3: Cross multiply
    14,986.26x = 20,682.94 × 9,021.16
  4. Step 4: Simplify right side
    14,986.26x = 186,584,111.01
  5. Step 5: Solve for x
    x = 186,584,111.01/14,986.26
  6. Step 6: Final answer
    x = 12,450.35

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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.