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Finding the Fourth Proportional to 16,695.78, 23,034.96 and 9,621.24

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Solution

The fourth proportional to 16,695.78, 23,034.96 and 9,621.24 is: 13,274.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,695.78 : 23,034.96 = 9,621.24 : x
  2. Step 2: Convert to fraction form
    16,695.78/23,034.96 = 9,621.24/x
  3. Step 3: Cross multiply
    16,695.78x = 23,034.96 × 9,621.24
  4. Step 4: Simplify right side
    16,695.78x = 221,624,878.55
  5. Step 5: Solve for x
    x = 221,624,878.55/16,695.78
  6. Step 6: Final answer
    x = 13,274.31

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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.