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Finding the Third Proportional to 19,875 and 29,700

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Solution

The third proportional to 19,875 and 29,700 is: 44,381.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875 : 29,700 = 29,700 : x
  2. Step 2: Convert to fraction form
    19,875/29,700 = 29,700/x
  3. Step 3: Cross multiply
    19,875x = 29,700 × 29,700
  4. Step 4: Simplify right side
    19,875x = 882,090,000
  5. Step 5: Solve for x
    x = 882,090,000/19,875
  6. Step 6: Final answer
    x = 44,381.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.