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Finding the Fourth Proportional to 26,193.60, 39,200.80 and 15,812.80

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Solution

The fourth proportional to 26,193.60, 39,200.80 and 15,812.80 is: 23,665.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,193.60 : 39,200.80 = 15,812.80 : x
  2. Step 2: Convert to fraction form
    26,193.60/39,200.80 = 15,812.80/x
  3. Step 3: Cross multiply
    26,193.60x = 39,200.80 × 15,812.80
  4. Step 4: Simplify right side
    26,193.60x = 619,874,410.24
  5. Step 5: Solve for x
    x = 619,874,410.24/26,193.60
  6. Step 6: Final answer
    x = 23,665.11

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1.5x scale

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.