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Finding the Fourth Proportional to 1,885.09, 2,601.53 and 1,099.09

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Solution

The fourth proportional to 1,885.09, 2,601.53 and 1,099.09 is: 1,516.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.09 : 2,601.53 = 1,099.09 : x
  2. Step 2: Convert to fraction form
    1,885.09/2,601.53 = 1,099.09/x
  3. Step 3: Cross multiply
    1,885.09x = 2,601.53 × 1,099.09
  4. Step 4: Simplify right side
    1,885.09x = 2,859,315.61
  5. Step 5: Solve for x
    x = 2,859,315.61/1,885.09
  6. Step 6: Final answer
    x = 1,516.81

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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.