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Finding the Fourth Proportional to 12,201.66, 16,837.02 and 6,823.80

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Solution

The fourth proportional to 12,201.66, 16,837.02 and 6,823.80 is: 9,416.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.66 : 16,837.02 = 6,823.80 : x
  2. Step 2: Convert to fraction form
    12,201.66/16,837.02 = 6,823.80/x
  3. Step 3: Cross multiply
    12,201.66x = 16,837.02 × 6,823.80
  4. Step 4: Simplify right side
    12,201.66x = 114,892,457.08
  5. Step 5: Solve for x
    x = 114,892,457.08/12,201.66
  6. Step 6: Final answer
    x = 9,416.13

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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.