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Finding the Third Proportional to 31,140 and 44,490

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Solution

The third proportional to 31,140 and 44,490 is: 63,563.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,140 : 44,490 = 44,490 : x
  2. Step 2: Convert to fraction form
    31,140/44,490 = 44,490/x
  3. Step 3: Cross multiply
    31,140x = 44,490 × 44,490
  4. Step 4: Simplify right side
    31,140x = 1,979,360,100
  5. Step 5: Solve for x
    x = 1,979,360,100/31,140
  6. Step 6: Final answer
    x = 63,563.27

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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.