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Finding the Fourth Proportional to 33,807.60, 46,651.50 and 18,700.20

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Solution

The fourth proportional to 33,807.60, 46,651.50 and 18,700.20 is: 25,804.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,807.60 : 46,651.50 = 18,700.20 : x
  2. Step 2: Convert to fraction form
    33,807.60/46,651.50 = 18,700.20/x
  3. Step 3: Cross multiply
    33,807.60x = 46,651.50 × 18,700.20
  4. Step 4: Simplify right side
    33,807.60x = 872,392,380.30
  5. Step 5: Solve for x
    x = 872,392,380.30/33,807.60
  6. Step 6: Final answer
    x = 25,804.62

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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.