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Finding the Fourth Proportional to 29,980.54, 41,374.53 and 16,553.70

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Solution

The fourth proportional to 29,980.54, 41,374.53 and 16,553.70 is: 22,844.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,980.54 : 41,374.53 = 16,553.70 : x
  2. Step 2: Convert to fraction form
    29,980.54/41,374.53 = 16,553.70/x
  3. Step 3: Cross multiply
    29,980.54x = 41,374.53 × 16,553.70
  4. Step 4: Simplify right side
    29,980.54x = 684,901,557.26
  5. Step 5: Solve for x
    x = 684,901,557.26/29,980.54
  6. Step 6: Final answer
    x = 22,844.87

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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.