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Finding the Fourth Proportional to 2,506.58, 3,459.20 and 1,512.20

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Solution

The fourth proportional to 2,506.58, 3,459.20 and 1,512.20 is: 2,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,506.58 : 3,459.20 = 1,512.20 : x
  2. Step 2: Convert to fraction form
    2,506.58/3,459.20 = 1,512.20/x
  3. Step 3: Cross multiply
    2,506.58x = 3,459.20 × 1,512.20
  4. Step 4: Simplify right side
    2,506.58x = 5,230,977.38
  5. Step 5: Solve for x
    x = 5,230,977.38/2,506.58
  6. Step 6: Final answer
    x = 2,086.90

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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.