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Finding the Third Proportional to 55,547 and 79,376

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Solution

The third proportional to 55,547 and 79,376 is: 113,427.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,547 : 79,376 = 79,376 : x
  2. Step 2: Convert to fraction form
    55,547/79,376 = 79,376/x
  3. Step 3: Cross multiply
    55,547x = 79,376 × 79,376
  4. Step 4: Simplify right side
    55,547x = 6,300,549,376
  5. Step 5: Solve for x
    x = 6,300,549,376/55,547
  6. Step 6: Final answer
    x = 113,427.36

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.