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Finding the Fourth Proportional to 7,203.98, 9,942.35 and 4,017.80

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Solution

The fourth proportional to 7,203.98, 9,942.35 and 4,017.80 is: 5,545.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203.98 : 9,942.35 = 4,017.80 : x
  2. Step 2: Convert to fraction form
    7,203.98/9,942.35 = 4,017.80/x
  3. Step 3: Cross multiply
    7,203.98x = 9,942.35 × 4,017.80
  4. Step 4: Simplify right side
    7,203.98x = 39,946,304.03
  5. Step 5: Solve for x
    x = 39,946,304.03/7,203.98
  6. Step 6: Final answer
    x = 5,545.04

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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.