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Finding the Fourth Proportional to 4,886.18, 6,742.14 and 2,790.26

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Solution

The fourth proportional to 4,886.18, 6,742.14 and 2,790.26 is: 3,850.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,886.18 : 6,742.14 = 2,790.26 : x
  2. Step 2: Convert to fraction form
    4,886.18/6,742.14 = 2,790.26/x
  3. Step 3: Cross multiply
    4,886.18x = 6,742.14 × 2,790.26
  4. Step 4: Simplify right side
    4,886.18x = 18,812,323.56
  5. Step 5: Solve for x
    x = 18,812,323.56/4,886.18
  6. Step 6: Final answer
    x = 3,850.11

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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.