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Finding the Fourth Proportional to 7,792.00, 10,752.90 and 4,255.21

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Solution

The fourth proportional to 7,792.00, 10,752.90 and 4,255.21 is: 5,872.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,792.00 : 10,752.90 = 4,255.21 : x
  2. Step 2: Convert to fraction form
    7,792.00/10,752.90 = 4,255.21/x
  3. Step 3: Cross multiply
    7,792.00x = 10,752.90 × 4,255.21
  4. Step 4: Simplify right side
    7,792.00x = 45,755,838.79
  5. Step 5: Solve for x
    x = 45,755,838.79/7,792.00
  6. Step 6: Final answer
    x = 5,872.16

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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.