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Finding the Fourth Proportional to 52,865.68, 72,968.52 and 31,661.52

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Solution

The fourth proportional to 52,865.68, 72,968.52 and 31,661.52 is: 43,701.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,865.68 : 72,968.52 = 31,661.52 : x
  2. Step 2: Convert to fraction form
    52,865.68/72,968.52 = 31,661.52/x
  3. Step 3: Cross multiply
    52,865.68x = 72,968.52 × 31,661.52
  4. Step 4: Simplify right side
    52,865.68x = 2,310,294,255.35
  5. Step 5: Solve for x
    x = 2,310,294,255.35/52,865.68
  6. Step 6: Final answer
    x = 43,701.21

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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.