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Finding the Fourth Proportional to 2,486.70, 3,450.24 and 2,465.51

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Solution

The fourth proportional to 2,486.70, 3,450.24 and 2,465.51 is: 3,420.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.70 : 3,450.24 = 2,465.51 : x
  2. Step 2: Convert to fraction form
    2,486.70/3,450.24 = 2,465.51/x
  3. Step 3: Cross multiply
    2,486.70x = 3,450.24 × 2,465.51
  4. Step 4: Simplify right side
    2,486.70x = 8,506,583.97
  5. Step 5: Solve for x
    x = 8,506,583.97/2,486.70
  6. Step 6: Final answer
    x = 3,420.83

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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.