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Finding the Third Proportional to 19,143 and 29,416.50

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Solution

The third proportional to 19,143 and 29,416.50 is: 45,203.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143 : 29,416.50 = 29,416.50 : x
  2. Step 2: Convert to fraction form
    19,143/29,416.50 = 29,416.50/x
  3. Step 3: Cross multiply
    19,143x = 29,416.50 × 29,416.50
  4. Step 4: Simplify right side
    19,143x = 865,330,472.25
  5. Step 5: Solve for x
    x = 865,330,472.25/19,143
  6. Step 6: Final answer
    x = 45,203.49

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.