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Finding the Fourth Proportional to 12,199.22, 16,836.10 and 7,486.58

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Solution

The fourth proportional to 12,199.22, 16,836.10 and 7,486.58 is: 10,332.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,199.22 : 16,836.10 = 7,486.58 : x
  2. Step 2: Convert to fraction form
    12,199.22/16,836.10 = 7,486.58/x
  3. Step 3: Cross multiply
    12,199.22x = 16,836.10 × 7,486.58
  4. Step 4: Simplify right side
    12,199.22x = 126,044,706.64
  5. Step 5: Solve for x
    x = 126,044,706.64/12,199.22
  6. Step 6: Final answer
    x = 10,332.20

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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.