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Finding the Fourth Proportional to 4,863.93, 7,285.77 and 2,915.07

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Solution

The fourth proportional to 4,863.93, 7,285.77 and 2,915.07 is: 4,366.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,863.93 : 7,285.77 = 2,915.07 : x
  2. Step 2: Convert to fraction form
    4,863.93/7,285.77 = 2,915.07/x
  3. Step 3: Cross multiply
    4,863.93x = 7,285.77 × 2,915.07
  4. Step 4: Simplify right side
    4,863.93x = 21,238,529.55
  5. Step 5: Solve for x
    x = 21,238,529.55/4,863.93
  6. Step 6: Final answer
    x = 4,366.54

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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.