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Finding the Third Proportional to 64,947 and 97,420.50

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Solution

The third proportional to 64,947 and 97,420.50 is: 146,130.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,947 : 97,420.50 = 97,420.50 : x
  2. Step 2: Convert to fraction form
    64,947/97,420.50 = 97,420.50/x
  3. Step 3: Cross multiply
    64,947x = 97,420.50 × 97,420.50
  4. Step 4: Simplify right side
    64,947x = 9,490,753,820.25
  5. Step 5: Solve for x
    x = 9,490,753,820.25/64,947
  6. Step 6: Final answer
    x = 146,130.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.