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Finding the Fourth Proportional to 4,880.72, 6,736.20 and 3,307.76

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Solution

The fourth proportional to 4,880.72, 6,736.20 and 3,307.76 is: 4,565.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.72 : 6,736.20 = 3,307.76 : x
  2. Step 2: Convert to fraction form
    4,880.72/6,736.20 = 3,307.76/x
  3. Step 3: Cross multiply
    4,880.72x = 6,736.20 × 3,307.76
  4. Step 4: Simplify right side
    4,880.72x = 22,281,732.91
  5. Step 5: Solve for x
    x = 22,281,732.91/4,880.72
  6. Step 6: Final answer
    x = 4,565.26

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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.