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Finding the Fourth Proportional to 4,661.98, 6,990.90 and 2,470.20

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Solution

The fourth proportional to 4,661.98, 6,990.90 and 2,470.20 is: 3,704.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,661.98 : 6,990.90 = 2,470.20 : x
  2. Step 2: Convert to fraction form
    4,661.98/6,990.90 = 2,470.20/x
  3. Step 3: Cross multiply
    4,661.98x = 6,990.90 × 2,470.20
  4. Step 4: Simplify right side
    4,661.98x = 17,268,921.18
  5. Step 5: Solve for x
    x = 17,268,921.18/4,661.98
  6. Step 6: Final answer
    x = 3,704.20

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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.