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Finding the Fourth Proportional to 26,784.60, 40,133.70 and 16,906.20

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Solution

The fourth proportional to 26,784.60, 40,133.70 and 16,906.20 is: 25,332.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,784.60 : 40,133.70 = 16,906.20 : x
  2. Step 2: Convert to fraction form
    26,784.60/40,133.70 = 16,906.20/x
  3. Step 3: Cross multiply
    26,784.60x = 40,133.70 × 16,906.20
  4. Step 4: Simplify right side
    26,784.60x = 678,508,358.94
  5. Step 5: Solve for x
    x = 678,508,358.94/26,784.60
  6. Step 6: Final answer
    x = 25,332.03

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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.