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Finding the Fourth Proportional to 65,361.66, 97,994.70 and 20,963.14

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Solution

The fourth proportional to 65,361.66, 97,994.70 and 20,963.14 is: 31,429.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,361.66 : 97,994.70 = 20,963.14 : x
  2. Step 2: Convert to fraction form
    65,361.66/97,994.70 = 20,963.14/x
  3. Step 3: Cross multiply
    65,361.66x = 97,994.70 × 20,963.14
  4. Step 4: Simplify right side
    65,361.66x = 2,054,276,615.36
  5. Step 5: Solve for x
    x = 2,054,276,615.36/65,361.66
  6. Step 6: Final answer
    x = 31,429.38

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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.