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Finding the Fourth Proportional to 29,980.95, 41,373.87 and 16,551.96

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Solution

The fourth proportional to 29,980.95, 41,373.87 and 16,551.96 is: 22,841.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,980.95 : 41,373.87 = 16,551.96 : x
  2. Step 2: Convert to fraction form
    29,980.95/41,373.87 = 16,551.96/x
  3. Step 3: Cross multiply
    29,980.95x = 41,373.87 × 16,551.96
  4. Step 4: Simplify right side
    29,980.95x = 684,818,641.29
  5. Step 5: Solve for x
    x = 684,818,641.29/29,980.95
  6. Step 6: Final answer
    x = 22,841.79

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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.