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Finding the Fourth Proportional to 16,622.42, 22,941.90 and 9,908.47

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Solution

The fourth proportional to 16,622.42, 22,941.90 and 9,908.47 is: 13,675.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,622.42 : 22,941.90 = 9,908.47 : x
  2. Step 2: Convert to fraction form
    16,622.42/22,941.90 = 9,908.47/x
  3. Step 3: Cross multiply
    16,622.42x = 22,941.90 × 9,908.47
  4. Step 4: Simplify right side
    16,622.42x = 227,319,156.57
  5. Step 5: Solve for x
    x = 227,319,156.57/16,622.42
  6. Step 6: Final answer
    x = 13,675.46

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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.