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Finding the Fourth Proportional to 7,223.87, 9,968.63 and 4,240.03

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Solution

The fourth proportional to 7,223.87, 9,968.63 and 4,240.03 is: 5,851.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,223.87 : 9,968.63 = 4,240.03 : x
  2. Step 2: Convert to fraction form
    7,223.87/9,968.63 = 4,240.03/x
  3. Step 3: Cross multiply
    7,223.87x = 9,968.63 × 4,240.03
  4. Step 4: Simplify right side
    7,223.87x = 42,267,290.26
  5. Step 5: Solve for x
    x = 42,267,290.26/7,223.87
  6. Step 6: Final answer
    x = 5,851.06

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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.