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Finding the Fourth Proportional to 16,254.88, 22,431.48 and 8,802.88

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Solution

The fourth proportional to 16,254.88, 22,431.48 and 8,802.88 is: 12,147.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,254.88 : 22,431.48 = 8,802.88 : x
  2. Step 2: Convert to fraction form
    16,254.88/22,431.48 = 8,802.88/x
  3. Step 3: Cross multiply
    16,254.88x = 22,431.48 × 8,802.88
  4. Step 4: Simplify right side
    16,254.88x = 197,461,626.66
  5. Step 5: Solve for x
    x = 197,461,626.66/16,254.88
  6. Step 6: Final answer
    x = 12,147.84

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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.