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Finding the Third Proportional to 49,148.50 and 74,130

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Solution

The third proportional to 49,148.50 and 74,130 is: 111,809.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,148.50 : 74,130 = 74,130 : x
  2. Step 2: Convert to fraction form
    49,148.50/74,130 = 74,130/x
  3. Step 3: Cross multiply
    49,148.50x = 74,130 × 74,130
  4. Step 4: Simplify right side
    49,148.50x = 5,495,256,900
  5. Step 5: Solve for x
    x = 5,495,256,900/49,148.50
  6. Step 6: Final answer
    x = 111,809.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.