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Finding the Fourth Proportional to 5,287.02, 7,922.66 and 4,820.24

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Solution

The fourth proportional to 5,287.02, 7,922.66 and 4,820.24 is: 7,223.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.02 : 7,922.66 = 4,820.24 : x
  2. Step 2: Convert to fraction form
    5,287.02/7,922.66 = 4,820.24/x
  3. Step 3: Cross multiply
    5,287.02x = 7,922.66 × 4,820.24
  4. Step 4: Simplify right side
    5,287.02x = 38,189,122.64
  5. Step 5: Solve for x
    x = 38,189,122.64/5,287.02
  6. Step 6: Final answer
    x = 7,223.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.