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Finding the Third Proportional to 19,964 and 43,440

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Solution

The third proportional to 19,964 and 43,440 is: 94,521.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,964 : 43,440 = 43,440 : x
  2. Step 2: Convert to fraction form
    19,964/43,440 = 43,440/x
  3. Step 3: Cross multiply
    19,964x = 43,440 × 43,440
  4. Step 4: Simplify right side
    19,964x = 1,887,033,600
  5. Step 5: Solve for x
    x = 1,887,033,600/19,964
  6. Step 6: Final answer
    x = 94,521.82

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.