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Finding the Fourth Proportional to 52,766.61, 72,817.23 and 28,893.31

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Solution

The fourth proportional to 52,766.61, 72,817.23 and 28,893.31 is: 39,872.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,766.61 : 72,817.23 = 28,893.31 : x
  2. Step 2: Convert to fraction form
    52,766.61/72,817.23 = 28,893.31/x
  3. Step 3: Cross multiply
    52,766.61x = 72,817.23 × 28,893.31
  4. Step 4: Simplify right side
    52,766.61x = 2,103,930,563.51
  5. Step 5: Solve for x
    x = 2,103,930,563.51/52,766.61
  6. Step 6: Final answer
    x = 39,872.38

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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.