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Finding the Third Proportional to 32,688 and 47,979

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Solution

The third proportional to 32,688 and 47,979 is: 70,422.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,688 : 47,979 = 47,979 : x
  2. Step 2: Convert to fraction form
    32,688/47,979 = 47,979/x
  3. Step 3: Cross multiply
    32,688x = 47,979 × 47,979
  4. Step 4: Simplify right side
    32,688x = 2,301,984,441
  5. Step 5: Solve for x
    x = 2,301,984,441/32,688
  6. Step 6: Final answer
    x = 70,422.92

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.