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Finding the Fourth Proportional to 2,671.72, 4,004.22 and 1,518.12

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Solution

The fourth proportional to 2,671.72, 4,004.22 and 1,518.12 is: 2,275.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,671.72 : 4,004.22 = 1,518.12 : x
  2. Step 2: Convert to fraction form
    2,671.72/4,004.22 = 1,518.12/x
  3. Step 3: Cross multiply
    2,671.72x = 4,004.22 × 1,518.12
  4. Step 4: Simplify right side
    2,671.72x = 6,078,886.47
  5. Step 5: Solve for x
    x = 6,078,886.47/2,671.72
  6. Step 6: Final answer
    x = 2,275.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.