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Finding the Fourth Proportional to 2,034.86, 2,808.11 and 1,238.45

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Solution

The fourth proportional to 2,034.86, 2,808.11 and 1,238.45 is: 1,709.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,034.86 : 2,808.11 = 1,238.45 : x
  2. Step 2: Convert to fraction form
    2,034.86/2,808.11 = 1,238.45/x
  3. Step 3: Cross multiply
    2,034.86x = 2,808.11 × 1,238.45
  4. Step 4: Simplify right side
    2,034.86x = 3,477,683.60
  5. Step 5: Solve for x
    x = 3,477,683.60/2,034.86
  6. Step 6: Final answer
    x = 1,709.06

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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.