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Finding the Fourth Proportional to 16,230.65, 22,395.08 and 9,518.38

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Solution

The fourth proportional to 16,230.65, 22,395.08 and 9,518.38 is: 13,133.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,230.65 : 22,395.08 = 9,518.38 : x
  2. Step 2: Convert to fraction form
    16,230.65/22,395.08 = 9,518.38/x
  3. Step 3: Cross multiply
    16,230.65x = 22,395.08 × 9,518.38
  4. Step 4: Simplify right side
    16,230.65x = 213,164,849.38
  5. Step 5: Solve for x
    x = 213,164,849.38/16,230.65
  6. Step 6: Final answer
    x = 13,133.48

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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.