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Finding the Fourth Proportional to 9,223.67, 12,728.67 and 5,245.03

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Solution

The fourth proportional to 9,223.67, 12,728.67 and 5,245.03 is: 7,238.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,223.67 : 12,728.67 = 5,245.03 : x
  2. Step 2: Convert to fraction form
    9,223.67/12,728.67 = 5,245.03/x
  3. Step 3: Cross multiply
    9,223.67x = 12,728.67 × 5,245.03
  4. Step 4: Simplify right side
    9,223.67x = 66,762,256.01
  5. Step 5: Solve for x
    x = 66,762,256.01/9,223.67
  6. Step 6: Final answer
    x = 7,238.14

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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.