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Finding the Fourth Proportional to 28,164.60, 42,246.90 and 26,026.20

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Solution

The fourth proportional to 28,164.60, 42,246.90 and 26,026.20 is: 39,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,164.60 : 42,246.90 = 26,026.20 : x
  2. Step 2: Convert to fraction form
    28,164.60/42,246.90 = 26,026.20/x
  3. Step 3: Cross multiply
    28,164.60x = 42,246.90 × 26,026.20
  4. Step 4: Simplify right side
    28,164.60x = 1,099,526,268.78
  5. Step 5: Solve for x
    x = 1,099,526,268.78/28,164.60
  6. Step 6: Final answer
    x = 39,039.30

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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.