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Finding the Fourth Proportional to 64,915.88, 89,583.93 and 35,107.88

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Solution

The fourth proportional to 64,915.88, 89,583.93 and 35,107.88 is: 48,448.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,915.88 : 89,583.93 = 35,107.88 : x
  2. Step 2: Convert to fraction form
    64,915.88/89,583.93 = 35,107.88/x
  3. Step 3: Cross multiply
    64,915.88x = 89,583.93 × 35,107.88
  4. Step 4: Simplify right side
    64,915.88x = 3,145,101,416.45
  5. Step 5: Solve for x
    x = 3,145,101,416.45/64,915.88
  6. Step 6: Final answer
    x = 48,448.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.