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Finding the Fourth Proportional to 64,315.52, 88,758.08 and 36,021.41

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Solution

The fourth proportional to 64,315.52, 88,758.08 and 36,021.41 is: 49,711.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,315.52 : 88,758.08 = 36,021.41 : x
  2. Step 2: Convert to fraction form
    64,315.52/88,758.08 = 36,021.41/x
  3. Step 3: Cross multiply
    64,315.52x = 88,758.08 × 36,021.41
  4. Step 4: Simplify right side
    64,315.52x = 3,197,190,566.60
  5. Step 5: Solve for x
    x = 3,197,190,566.60/64,315.52
  6. Step 6: Final answer
    x = 49,711.03

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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.