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Finding the Third Proportional to 3,038.63 and 4,721.63

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Solution

The third proportional to 3,038.63 and 4,721.63 is: 7,336.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.63 : 4,721.63 = 4,721.63 : x
  2. Step 2: Convert to fraction form
    3,038.63/4,721.63 = 4,721.63/x
  3. Step 3: Cross multiply
    3,038.63x = 4,721.63 × 4,721.63
  4. Step 4: Simplify right side
    3,038.63x = 22,293,742.64
  5. Step 5: Solve for x
    x = 22,293,742.64/3,038.63
  6. Step 6: Final answer
    x = 7,336.79

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.