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Finding the Fourth Proportional to 4,972.70, 7,450.95 and 4,276.10

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Solution

The fourth proportional to 4,972.70, 7,450.95 and 4,276.10 is: 6,407.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,972.70 : 7,450.95 = 4,276.10 : x
  2. Step 2: Convert to fraction form
    4,972.70/7,450.95 = 4,276.10/x
  3. Step 3: Cross multiply
    4,972.70x = 7,450.95 × 4,276.10
  4. Step 4: Simplify right side
    4,972.70x = 31,861,007.30
  5. Step 5: Solve for x
    x = 31,861,007.30/4,972.70
  6. Step 6: Final answer
    x = 6,407.18

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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.