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Finding the Fourth Proportional to 15,215.25, 22,825.76 and 7,007.25

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Solution

The fourth proportional to 15,215.25, 22,825.76 and 7,007.25 is: 10,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,215.25 : 22,825.76 = 7,007.25 : x
  2. Step 2: Convert to fraction form
    15,215.25/22,825.76 = 7,007.25/x
  3. Step 3: Cross multiply
    15,215.25x = 22,825.76 × 7,007.25
  4. Step 4: Simplify right side
    15,215.25x = 159,945,771.72
  5. Step 5: Solve for x
    x = 159,945,771.72/15,215.25
  6. Step 6: Final answer
    x = 10,512.20

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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.