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Finding the Fourth Proportional to 26,682.60, 39,980.70 and 16,804.20

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Solution

The fourth proportional to 26,682.60, 39,980.70 and 16,804.20 is: 25,179.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,682.60 : 39,980.70 = 16,804.20 : x
  2. Step 2: Convert to fraction form
    26,682.60/39,980.70 = 16,804.20/x
  3. Step 3: Cross multiply
    26,682.60x = 39,980.70 × 16,804.20
  4. Step 4: Simplify right side
    26,682.60x = 671,843,678.94
  5. Step 5: Solve for x
    x = 671,843,678.94/26,682.60
  6. Step 6: Final answer
    x = 25,179.09

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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.