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Finding the Fourth Proportional to 23,498.60, 35,247.90 and 20,426.60

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Solution

The fourth proportional to 23,498.60, 35,247.90 and 20,426.60 is: 30,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,498.60 : 35,247.90 = 20,426.60 : x
  2. Step 2: Convert to fraction form
    23,498.60/35,247.90 = 20,426.60/x
  3. Step 3: Cross multiply
    23,498.60x = 35,247.90 × 20,426.60
  4. Step 4: Simplify right side
    23,498.60x = 719,994,754.14
  5. Step 5: Solve for x
    x = 719,994,754.14/23,498.60
  6. Step 6: Final answer
    x = 30,639.90

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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.