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Finding the Fourth Proportional to 4,851.79, 6,690.22 and 3,730.25

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Solution

The fourth proportional to 4,851.79, 6,690.22 and 3,730.25 is: 5,143.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,851.79 : 6,690.22 = 3,730.25 : x
  2. Step 2: Convert to fraction form
    4,851.79/6,690.22 = 3,730.25/x
  3. Step 3: Cross multiply
    4,851.79x = 6,690.22 × 3,730.25
  4. Step 4: Simplify right side
    4,851.79x = 24,956,200.55
  5. Step 5: Solve for x
    x = 24,956,200.55/4,851.79
  6. Step 6: Final answer
    x = 5,143.71

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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.