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Finding the Fourth Proportional to 64,429.14, 88,921.92 and 39,293.22

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Solution

The fourth proportional to 64,429.14, 88,921.92 and 39,293.22 is: 54,230.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,429.14 : 88,921.92 = 39,293.22 : x
  2. Step 2: Convert to fraction form
    64,429.14/88,921.92 = 39,293.22/x
  3. Step 3: Cross multiply
    64,429.14x = 88,921.92 × 39,293.22
  4. Step 4: Simplify right side
    64,429.14x = 3,494,028,565.38
  5. Step 5: Solve for x
    x = 3,494,028,565.38/64,429.14
  6. Step 6: Final answer
    x = 54,230.56

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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.