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Finding the Third Proportional to 67,991.50 and 97,368.50

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Solution

The third proportional to 67,991.50 and 97,368.50 is: 139,438.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,991.50 : 97,368.50 = 97,368.50 : x
  2. Step 2: Convert to fraction form
    67,991.50/97,368.50 = 97,368.50/x
  3. Step 3: Cross multiply
    67,991.50x = 97,368.50 × 97,368.50
  4. Step 4: Simplify right side
    67,991.50x = 9,480,624,792.25
  5. Step 5: Solve for x
    x = 9,480,624,792.25/67,991.50
  6. Step 6: Final answer
    x = 139,438.38

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.