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Finding the Third Proportional to 28,930 and 45,547

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Solution

The third proportional to 28,930 and 45,547 is: 71,708.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930 : 45,547 = 45,547 : x
  2. Step 2: Convert to fraction form
    28,930/45,547 = 45,547/x
  3. Step 3: Cross multiply
    28,930x = 45,547 × 45,547
  4. Step 4: Simplify right side
    28,930x = 2,074,529,209
  5. Step 5: Solve for x
    x = 2,074,529,209/28,930
  6. Step 6: Final answer
    x = 71,708.58

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.