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Finding the Third Proportional to 3,419.58 and 4,889.95

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Solution

The third proportional to 3,419.58 and 4,889.95 is: 6,992.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.58 : 4,889.95 = 4,889.95 : x
  2. Step 2: Convert to fraction form
    3,419.58/4,889.95 = 4,889.95/x
  3. Step 3: Cross multiply
    3,419.58x = 4,889.95 × 4,889.95
  4. Step 4: Simplify right side
    3,419.58x = 23,911,641.56
  5. Step 5: Solve for x
    x = 23,911,641.56/3,419.58
  6. Step 6: Final answer
    x = 6,992.57

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.