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Finding the Fourth Proportional to 14,906.16, 20,570.90 and 8,192.07

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Solution

The fourth proportional to 14,906.16, 20,570.90 and 8,192.07 is: 11,305.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,906.16 : 20,570.90 = 8,192.07 : x
  2. Step 2: Convert to fraction form
    14,906.16/20,570.90 = 8,192.07/x
  3. Step 3: Cross multiply
    14,906.16x = 20,570.90 × 8,192.07
  4. Step 4: Simplify right side
    14,906.16x = 168,518,211.80
  5. Step 5: Solve for x
    x = 168,518,211.80/14,906.16
  6. Step 6: Final answer
    x = 11,305.27

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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.