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Finding the Fourth Proportional to 52,591.70, 72,579.50 and 28,720.60

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Solution

The fourth proportional to 52,591.70, 72,579.50 and 28,720.60 is: 39,636.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,591.70 : 72,579.50 = 28,720.60 : x
  2. Step 2: Convert to fraction form
    52,591.70/72,579.50 = 28,720.60/x
  3. Step 3: Cross multiply
    52,591.70x = 72,579.50 × 28,720.60
  4. Step 4: Simplify right side
    52,591.70x = 2,084,526,787.70
  5. Step 5: Solve for x
    x = 2,084,526,787.70/52,591.70
  6. Step 6: Final answer
    x = 39,636.04

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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.