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Finding the Third Proportional to 28,896 and 63,168

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Solution

The third proportional to 28,896 and 63,168 is: 138,088.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,896 : 63,168 = 63,168 : x
  2. Step 2: Convert to fraction form
    28,896/63,168 = 63,168/x
  3. Step 3: Cross multiply
    28,896x = 63,168 × 63,168
  4. Step 4: Simplify right side
    28,896x = 3,990,196,224
  5. Step 5: Solve for x
    x = 3,990,196,224/28,896
  6. Step 6: Final answer
    x = 138,088.19

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.