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Finding the Fourth Proportional to 64,494.96, 88,991.64 and 39,352.56

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Solution

The fourth proportional to 64,494.96, 88,991.64 and 39,352.56 is: 54,299.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,494.96 : 88,991.64 = 39,352.56 : x
  2. Step 2: Convert to fraction form
    64,494.96/88,991.64 = 39,352.56/x
  3. Step 3: Cross multiply
    64,494.96x = 88,991.64 × 39,352.56
  4. Step 4: Simplify right side
    64,494.96x = 3,502,048,852.60
  5. Step 5: Solve for x
    x = 3,502,048,852.60/64,494.96
  6. Step 6: Final answer
    x = 54,299.57

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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.