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Finding the Fourth Proportional to 12,160.16, 16,781.03 and 6,571.16

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Solution

The fourth proportional to 12,160.16, 16,781.03 and 6,571.16 is: 9,068.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.16 : 16,781.03 = 6,571.16 : x
  2. Step 2: Convert to fraction form
    12,160.16/16,781.03 = 6,571.16/x
  3. Step 3: Cross multiply
    12,160.16x = 16,781.03 × 6,571.16
  4. Step 4: Simplify right side
    12,160.16x = 110,270,833.09
  5. Step 5: Solve for x
    x = 110,270,833.09/12,160.16
  6. Step 6: Final answer
    x = 9,068.21

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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.