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Finding the Fourth Proportional to 64,185.59, 96,301.18 and 28,643.67

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Solution

The fourth proportional to 64,185.59, 96,301.18 and 28,643.67 is: 42,975.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,185.59 : 96,301.18 = 28,643.67 : x
  2. Step 2: Convert to fraction form
    64,185.59/96,301.18 = 28,643.67/x
  3. Step 3: Cross multiply
    64,185.59x = 96,301.18 × 28,643.67
  4. Step 4: Simplify right side
    64,185.59x = 2,758,419,148.92
  5. Step 5: Solve for x
    x = 2,758,419,148.92/64,185.59
  6. Step 6: Final answer
    x = 42,975.68

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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.