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Finding the Fourth Proportional to 64,005.87, 95,967.72 and 26,591.79

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Solution

The fourth proportional to 64,005.87, 95,967.72 and 26,591.79 is: 39,870.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,005.87 : 95,967.72 = 26,591.79 : x
  2. Step 2: Convert to fraction form
    64,005.87/95,967.72 = 26,591.79/x
  3. Step 3: Cross multiply
    64,005.87x = 95,967.72 × 26,591.79
  4. Step 4: Simplify right side
    64,005.87x = 2,551,953,457.02
  5. Step 5: Solve for x
    x = 2,551,953,457.02/64,005.87
  6. Step 6: Final answer
    x = 39,870.62

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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.