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Finding the Fourth Proportional to 8,893.76, 12,273.12 and 4,915.04

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Solution

The fourth proportional to 8,893.76, 12,273.12 and 4,915.04 is: 6,782.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,893.76 : 12,273.12 = 4,915.04 : x
  2. Step 2: Convert to fraction form
    8,893.76/12,273.12 = 4,915.04/x
  3. Step 3: Cross multiply
    8,893.76x = 12,273.12 × 4,915.04
  4. Step 4: Simplify right side
    8,893.76x = 60,322,875.72
  5. Step 5: Solve for x
    x = 60,322,875.72/8,893.76
  6. Step 6: Final answer
    x = 6,782.61

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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.