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Finding the Fourth Proportional to 2,030.52, 2,814.86 and 1,919.64

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Solution

The fourth proportional to 2,030.52, 2,814.86 and 1,919.64 is: 2,661.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,030.52 : 2,814.86 = 1,919.64 : x
  2. Step 2: Convert to fraction form
    2,030.52/2,814.86 = 1,919.64/x
  3. Step 3: Cross multiply
    2,030.52x = 2,814.86 × 1,919.64
  4. Step 4: Simplify right side
    2,030.52x = 5,403,517.85
  5. Step 5: Solve for x
    x = 5,403,517.85/2,030.52
  6. Step 6: Final answer
    x = 2,661.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.