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Finding the Fourth Proportional to 79,032.96, 118,540.80 and 23,616

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Solution

The fourth proportional to 79,032.96, 118,540.80 and 23,616 is: 35,421.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,032.96 : 118,540.80 = 23,616 : x
  2. Step 2: Convert to fraction form
    79,032.96/118,540.80 = 23,616/x
  3. Step 3: Cross multiply
    79,032.96x = 118,540.80 × 23,616
  4. Step 4: Simplify right side
    79,032.96x = 2,799,459,532.80
  5. Step 5: Solve for x
    x = 2,799,459,532.80/79,032.96
  6. Step 6: Final answer
    x = 35,421.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.