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Finding the Fourth Proportional to 16,243.63, 22,416.22 and 8,791.63

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Solution

The fourth proportional to 16,243.63, 22,416.22 and 8,791.63 is: 12,132.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,243.63 : 22,416.22 = 8,791.63 : x
  2. Step 2: Convert to fraction form
    16,243.63/22,416.22 = 8,791.63/x
  3. Step 3: Cross multiply
    16,243.63x = 22,416.22 × 8,791.63
  4. Step 4: Simplify right side
    16,243.63x = 197,075,090.26
  5. Step 5: Solve for x
    x = 197,075,090.26/16,243.63
  6. Step 6: Final answer
    x = 12,132.45

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Double scale
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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.