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Finding the Fourth Proportional to 7,450.20, 10,456.20 and 7,450.20

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Solution

The fourth proportional to 7,450.20, 10,456.20 and 7,450.20 is: 10,456.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,450.20 : 10,456.20 = 7,450.20 : x
  2. Step 2: Convert to fraction form
    7,450.20/10,456.20 = 7,450.20/x
  3. Step 3: Cross multiply
    7,450.20x = 10,456.20 × 7,450.20
  4. Step 4: Simplify right side
    7,450.20x = 77,900,781.24
  5. Step 5: Solve for x
    x = 77,900,781.24/7,450.20
  6. Step 6: Final answer
    x = 10,456.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.