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Finding the Third Proportional to 47,740.50 and 75,276

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Solution

The third proportional to 47,740.50 and 75,276 is: 118,693.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,740.50 : 75,276 = 75,276 : x
  2. Step 2: Convert to fraction form
    47,740.50/75,276 = 75,276/x
  3. Step 3: Cross multiply
    47,740.50x = 75,276 × 75,276
  4. Step 4: Simplify right side
    47,740.50x = 5,666,476,176
  5. Step 5: Solve for x
    x = 5,666,476,176/47,740.50
  6. Step 6: Final answer
    x = 118,693.27

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.