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Finding the Third Proportional to 59,472 and 128,160

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Solution

The third proportional to 59,472 and 128,160 is: 276,180.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,472 : 128,160 = 128,160 : x
  2. Step 2: Convert to fraction form
    59,472/128,160 = 128,160/x
  3. Step 3: Cross multiply
    59,472x = 128,160 × 128,160
  4. Step 4: Simplify right side
    59,472x = 16,424,985,600
  5. Step 5: Solve for x
    x = 16,424,985,600/59,472
  6. Step 6: Final answer
    x = 276,180.15

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.