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Finding the Fourth Proportional to 7,203.62, 9,941.90 and 4,220.59

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Solution

The fourth proportional to 7,203.62, 9,941.90 and 4,220.59 is: 5,824.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203.62 : 9,941.90 = 4,220.59 : x
  2. Step 2: Convert to fraction form
    7,203.62/9,941.90 = 4,220.59/x
  3. Step 3: Cross multiply
    7,203.62x = 9,941.90 × 4,220.59
  4. Step 4: Simplify right side
    7,203.62x = 41,960,683.72
  5. Step 5: Solve for x
    x = 41,960,683.72/7,203.62
  6. Step 6: Final answer
    x = 5,824.94

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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.