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Finding the Fourth Proportional to 64,915.22, 97,361.66 and 18,156.98

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Solution

The fourth proportional to 64,915.22, 97,361.66 and 18,156.98 is: 27,232.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,915.22 : 97,361.66 = 18,156.98 : x
  2. Step 2: Convert to fraction form
    64,915.22/97,361.66 = 18,156.98/x
  3. Step 3: Cross multiply
    64,915.22x = 97,361.66 × 18,156.98
  4. Step 4: Simplify right side
    64,915.22x = 1,767,793,713.39
  5. Step 5: Solve for x
    x = 1,767,793,713.39/64,915.22
  6. Step 6: Final answer
    x = 27,232.35

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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.