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Finding the Third Proportional to 1,106.63 and 2,421

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Solution

The third proportional to 1,106.63 and 2,421 is: 5,296.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106.63 : 2,421 = 2,421 : x
  2. Step 2: Convert to fraction form
    1,106.63/2,421 = 2,421/x
  3. Step 3: Cross multiply
    1,106.63x = 2,421 × 2,421
  4. Step 4: Simplify right side
    1,106.63x = 5,861,241
  5. Step 5: Solve for x
    x = 5,861,241/1,106.63
  6. Step 6: Final answer
    x = 5,296.50

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.