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Finding the Fourth Proportional to 7,630.62, 10,521.93 and 6,627.04

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Solution

The fourth proportional to 7,630.62, 10,521.93 and 6,627.04 is: 9,138.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,630.62 : 10,521.93 = 6,627.04 : x
  2. Step 2: Convert to fraction form
    7,630.62/10,521.93 = 6,627.04/x
  3. Step 3: Cross multiply
    7,630.62x = 10,521.93 × 6,627.04
  4. Step 4: Simplify right side
    7,630.62x = 69,729,250.99
  5. Step 5: Solve for x
    x = 69,729,250.99/7,630.62
  6. Step 6: Final answer
    x = 9,138.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.