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Finding the Fourth Proportional to 16,254.21, 22,430.79 and 8,802.21

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Solution

The fourth proportional to 16,254.21, 22,430.79 and 8,802.21 is: 12,147.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,254.21 : 22,430.79 = 8,802.21 : x
  2. Step 2: Convert to fraction form
    16,254.21/22,430.79 = 8,802.21/x
  3. Step 3: Cross multiply
    16,254.21x = 22,430.79 × 8,802.21
  4. Step 4: Simplify right side
    16,254.21x = 197,440,524.05
  5. Step 5: Solve for x
    x = 197,440,524.05/16,254.21
  6. Step 6: Final answer
    x = 12,147.04

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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.