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Finding the Fourth Proportional to 14,822.14, 20,451.54 and 8,851.64

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Solution

The fourth proportional to 14,822.14, 20,451.54 and 8,851.64 is: 12,213.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,822.14 : 20,451.54 = 8,851.64 : x
  2. Step 2: Convert to fraction form
    14,822.14/20,451.54 = 8,851.64/x
  3. Step 3: Cross multiply
    14,822.14x = 20,451.54 × 8,851.64
  4. Step 4: Simplify right side
    14,822.14x = 181,029,669.53
  5. Step 5: Solve for x
    x = 181,029,669.53/14,822.14
  6. Step 6: Final answer
    x = 12,213.46

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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.