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Finding the Fourth Proportional to 64,558.76, 89,091.09 and 35,878.41

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Solution

The fourth proportional to 64,558.76, 89,091.09 and 35,878.41 is: 49,512.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,558.76 : 89,091.09 = 35,878.41 : x
  2. Step 2: Convert to fraction form
    64,558.76/89,091.09 = 35,878.41/x
  3. Step 3: Cross multiply
    64,558.76x = 89,091.09 × 35,878.41
  4. Step 4: Simplify right side
    64,558.76x = 3,196,446,654.37
  5. Step 5: Solve for x
    x = 3,196,446,654.37/64,558.76
  6. Step 6: Final answer
    x = 49,512.21

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1.5x scale

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.