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Finding the Fourth Proportional to 64,263.72, 96,404.06 and 28,725.32

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Solution

The fourth proportional to 64,263.72, 96,404.06 and 28,725.32 is: 43,091.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,263.72 : 96,404.06 = 28,725.32 : x
  2. Step 2: Convert to fraction form
    64,263.72/96,404.06 = 28,725.32/x
  3. Step 3: Cross multiply
    64,263.72x = 96,404.06 × 28,725.32
  4. Step 4: Simplify right side
    64,263.72x = 2,769,237,472.80
  5. Step 5: Solve for x
    x = 2,769,237,472.80/64,263.72
  6. Step 6: Final answer
    x = 43,091.77

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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.