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Finding the Fourth Proportional to 15,898.51, 21,934.87 and 9,183.25

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Solution

The fourth proportional to 15,898.51, 21,934.87 and 9,183.25 is: 12,669.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,898.51 : 21,934.87 = 9,183.25 : x
  2. Step 2: Convert to fraction form
    15,898.51/21,934.87 = 9,183.25/x
  3. Step 3: Cross multiply
    15,898.51x = 21,934.87 × 9,183.25
  4. Step 4: Simplify right side
    15,898.51x = 201,433,394.93
  5. Step 5: Solve for x
    x = 201,433,394.93/15,898.51
  6. Step 6: Final answer
    x = 12,669.95

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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.