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Finding the Fourth Proportional to 26,984.60, 40,479.84 and 10,358.76

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Solution

The fourth proportional to 26,984.60, 40,479.84 and 10,358.76 is: 15,539.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,984.60 : 40,479.84 = 10,358.76 : x
  2. Step 2: Convert to fraction form
    26,984.60/40,479.84 = 10,358.76/x
  3. Step 3: Cross multiply
    26,984.60x = 40,479.84 × 10,358.76
  4. Step 4: Simplify right side
    26,984.60x = 419,320,947.40
  5. Step 5: Solve for x
    x = 419,320,947.40/26,984.60
  6. Step 6: Final answer
    x = 15,539.27

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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.