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Finding the Fourth Proportional to 5,522.25, 7,620.71 and 3,038.25

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Solution

The fourth proportional to 5,522.25, 7,620.71 and 3,038.25 is: 4,192.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,522.25 : 7,620.71 = 3,038.25 : x
  2. Step 2: Convert to fraction form
    5,522.25/7,620.71 = 3,038.25/x
  3. Step 3: Cross multiply
    5,522.25x = 7,620.71 × 3,038.25
  4. Step 4: Simplify right side
    5,522.25x = 23,153,606.97
  5. Step 5: Solve for x
    x = 23,153,606.97/5,522.25
  6. Step 6: Final answer
    x = 4,192.79

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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.