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Finding the Fourth Proportional to 7,012.64, 10,522.20 and 4,825.64

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Solution

The fourth proportional to 7,012.64, 10,522.20 and 4,825.64 is: 7,240.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,012.64 : 10,522.20 = 4,825.64 : x
  2. Step 2: Convert to fraction form
    7,012.64/10,522.20 = 4,825.64/x
  3. Step 3: Cross multiply
    7,012.64x = 10,522.20 × 4,825.64
  4. Step 4: Simplify right side
    7,012.64x = 50,776,349.21
  5. Step 5: Solve for x
    x = 50,776,349.21/7,012.64
  6. Step 6: Final answer
    x = 7,240.69

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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.