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Finding the Fourth Proportional to 12,282.13, 18,423.03 and 7,353.13

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Solution

The fourth proportional to 12,282.13, 18,423.03 and 7,353.13 is: 11,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.13 : 18,423.03 = 7,353.13 : x
  2. Step 2: Convert to fraction form
    12,282.13/18,423.03 = 7,353.13/x
  3. Step 3: Cross multiply
    12,282.13x = 18,423.03 × 7,353.13
  4. Step 4: Simplify right side
    12,282.13x = 135,466,934.58
  5. Step 5: Solve for x
    x = 135,466,934.58/12,282.13
  6. Step 6: Final answer
    x = 11,029.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.