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Finding the Fourth Proportional to 39,473.96, 54,473.42 and 21,568.58

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Solution

The fourth proportional to 39,473.96, 54,473.42 and 21,568.58 is: 29,764.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,473.96 : 54,473.42 = 21,568.58 : x
  2. Step 2: Convert to fraction form
    39,473.96/54,473.42 = 21,568.58/x
  3. Step 3: Cross multiply
    39,473.96x = 54,473.42 × 21,568.58
  4. Step 4: Simplify right side
    39,473.96x = 1,174,914,283.79
  5. Step 5: Solve for x
    x = 1,174,914,283.79/39,473.96
  6. Step 6: Final answer
    x = 29,764.29

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Double scale
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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.