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Finding the Fourth Proportional to 8,728.16, 12,044.90 and 4,951.33

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Solution

The fourth proportional to 8,728.16, 12,044.90 and 4,951.33 is: 6,832.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.16 : 12,044.90 = 4,951.33 : x
  2. Step 2: Convert to fraction form
    8,728.16/12,044.90 = 4,951.33/x
  3. Step 3: Cross multiply
    8,728.16x = 12,044.90 × 4,951.33
  4. Step 4: Simplify right side
    8,728.16x = 59,638,256.98
  5. Step 5: Solve for x
    x = 59,638,256.98/8,728.16
  6. Step 6: Final answer
    x = 6,832.86

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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.