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Finding the Fourth Proportional to 14,993.39, 20,682.59 and 9,329.06

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Solution

The fourth proportional to 14,993.39, 20,682.59 and 9,329.06 is: 12,868.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,993.39 : 20,682.59 = 9,329.06 : x
  2. Step 2: Convert to fraction form
    14,993.39/20,682.59 = 9,329.06/x
  3. Step 3: Cross multiply
    14,993.39x = 20,682.59 × 9,329.06
  4. Step 4: Simplify right side
    14,993.39x = 192,948,973.01
  5. Step 5: Solve for x
    x = 192,948,973.01/14,993.39
  6. Step 6: Final answer
    x = 12,868.94

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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.