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Finding the Fourth Proportional to 64,745.51, 89,342.42 and 36,064.22

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Solution

The fourth proportional to 64,745.51, 89,342.42 and 36,064.22 is: 49,765.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,745.51 : 89,342.42 = 36,064.22 : x
  2. Step 2: Convert to fraction form
    64,745.51/89,342.42 = 36,064.22/x
  3. Step 3: Cross multiply
    64,745.51x = 89,342.42 × 36,064.22
  4. Step 4: Simplify right side
    64,745.51x = 3,222,064,063.18
  5. Step 5: Solve for x
    x = 3,222,064,063.18/64,745.51
  6. Step 6: Final answer
    x = 49,765.06

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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.