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Finding the Fourth Proportional to 28,959, 39,963.46 and 16,383.48

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Solution

The fourth proportional to 28,959, 39,963.46 and 16,383.48 is: 22,609.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,959 : 39,963.46 = 16,383.48 : x
  2. Step 2: Convert to fraction form
    28,959/39,963.46 = 16,383.48/x
  3. Step 3: Cross multiply
    28,959x = 39,963.46 × 16,383.48
  4. Step 4: Simplify right side
    28,959x = 654,740,547.64
  5. Step 5: Solve for x
    x = 654,740,547.64/28,959
  6. Step 6: Final answer
    x = 22,609.23

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.