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Finding the Fourth Proportional to 4,210.90, 6,304.20 and 3,724.90

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Solution

The fourth proportional to 4,210.90, 6,304.20 and 3,724.90 is: 5,576.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,210.90 : 6,304.20 = 3,724.90 : x
  2. Step 2: Convert to fraction form
    4,210.90/6,304.20 = 3,724.90/x
  3. Step 3: Cross multiply
    4,210.90x = 6,304.20 × 3,724.90
  4. Step 4: Simplify right side
    4,210.90x = 23,482,514.58
  5. Step 5: Solve for x
    x = 23,482,514.58/4,210.90
  6. Step 6: Final answer
    x = 5,576.60

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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.