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Finding the Third Proportional to 58,779 and 130,638

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Solution

The third proportional to 58,779 and 130,638 is: 290,346.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,779 : 130,638 = 130,638 : x
  2. Step 2: Convert to fraction form
    58,779/130,638 = 130,638/x
  3. Step 3: Cross multiply
    58,779x = 130,638 × 130,638
  4. Step 4: Simplify right side
    58,779x = 17,066,287,044
  5. Step 5: Solve for x
    x = 17,066,287,044/58,779
  6. Step 6: Final answer
    x = 290,346.67

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.