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Finding the Fourth Proportional to 4,290.60, 5,921.16 and 2,522.16

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Solution

The fourth proportional to 4,290.60, 5,921.16 and 2,522.16 is: 3,480.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.60 : 5,921.16 = 2,522.16 : x
  2. Step 2: Convert to fraction form
    4,290.60/5,921.16 = 2,522.16/x
  3. Step 3: Cross multiply
    4,290.60x = 5,921.16 × 2,522.16
  4. Step 4: Simplify right side
    4,290.60x = 14,934,112.91
  5. Step 5: Solve for x
    x = 14,934,112.91/4,290.60
  6. Step 6: Final answer
    x = 3,480.66

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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.