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Finding the Third Proportional to 4,644 and 5,220

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Solution

The third proportional to 4,644 and 5,220 is: 5,867.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,644 : 5,220 = 5,220 : x
  2. Step 2: Convert to fraction form
    4,644/5,220 = 5,220/x
  3. Step 3: Cross multiply
    4,644x = 5,220 × 5,220
  4. Step 4: Simplify right side
    4,644x = 27,248,400
  5. Step 5: Solve for x
    x = 27,248,400/4,644
  6. Step 6: Final answer
    x = 5,867.44

Related Problems

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.