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Finding the Fourth Proportional to 64,776.90, 97,220.74 and 25,361.70

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Solution

The fourth proportional to 64,776.90, 97,220.74 and 25,361.70 is: 38,064.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,776.90 : 97,220.74 = 25,361.70 : x
  2. Step 2: Convert to fraction form
    64,776.90/97,220.74 = 25,361.70/x
  3. Step 3: Cross multiply
    64,776.90x = 97,220.74 × 25,361.70
  4. Step 4: Simplify right side
    64,776.90x = 2,465,683,241.66
  5. Step 5: Solve for x
    x = 2,465,683,241.66/64,776.90
  6. Step 6: Final answer
    x = 38,064.24

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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.