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Finding the Fourth Proportional to 2,420.01, 3,630.42 and 959.18

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Solution

The fourth proportional to 2,420.01, 3,630.42 and 959.18 is: 1,438.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.01 : 3,630.42 = 959.18 : x
  2. Step 2: Convert to fraction form
    2,420.01/3,630.42 = 959.18/x
  3. Step 3: Cross multiply
    2,420.01x = 3,630.42 × 959.18
  4. Step 4: Simplify right side
    2,420.01x = 3,482,208.10
  5. Step 5: Solve for x
    x = 3,482,208.10/2,420.01
  6. Step 6: Final answer
    x = 1,438.92

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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.