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Finding the Fourth Proportional to 64,730.79, 96,997.28 and 43,592.67

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Solution

The fourth proportional to 64,730.79, 96,997.28 and 43,592.67 is: 65,322.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,730.79 : 96,997.28 = 43,592.67 : x
  2. Step 2: Convert to fraction form
    64,730.79/96,997.28 = 43,592.67/x
  3. Step 3: Cross multiply
    64,730.79x = 96,997.28 × 43,592.67
  4. Step 4: Simplify right side
    64,730.79x = 4,228,370,199.97
  5. Step 5: Solve for x
    x = 4,228,370,199.97/64,730.79
  6. Step 6: Final answer
    x = 65,322.39

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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.