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Finding the Fourth Proportional to 29,980.42, 41,372.97 and 16,551.70

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Solution

The fourth proportional to 29,980.42, 41,372.97 and 16,551.70 is: 22,841.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,980.42 : 41,372.97 = 16,551.70 : x
  2. Step 2: Convert to fraction form
    29,980.42/41,372.97 = 16,551.70/x
  3. Step 3: Cross multiply
    29,980.42x = 41,372.97 × 16,551.70
  4. Step 4: Simplify right side
    29,980.42x = 684,792,987.55
  5. Step 5: Solve for x
    x = 684,792,987.55/29,980.42
  6. Step 6: Final answer
    x = 22,841.34

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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.