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Finding the Fourth Proportional to 10,705.61, 16,058.39 and 2,914.40

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Solution

The fourth proportional to 10,705.61, 16,058.39 and 2,914.40 is: 4,371.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,705.61 : 16,058.39 = 2,914.40 : x
  2. Step 2: Convert to fraction form
    10,705.61/16,058.39 = 2,914.40/x
  3. Step 3: Cross multiply
    10,705.61x = 16,058.39 × 2,914.40
  4. Step 4: Simplify right side
    10,705.61x = 46,800,476.95
  5. Step 5: Solve for x
    x = 46,800,476.95/10,705.61
  6. Step 6: Final answer
    x = 4,371.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.