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Finding the Fourth Proportional to 26,963.60, 40,426.20 and 10,317.20

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Solution

The fourth proportional to 26,963.60, 40,426.20 and 10,317.20 is: 15,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,963.60 : 40,426.20 = 10,317.20 : x
  2. Step 2: Convert to fraction form
    26,963.60/40,426.20 = 10,317.20/x
  3. Step 3: Cross multiply
    26,963.60x = 40,426.20 × 10,317.20
  4. Step 4: Simplify right side
    26,963.60x = 417,085,190.64
  5. Step 5: Solve for x
    x = 417,085,190.64/26,963.60
  6. Step 6: Final answer
    x = 15,468.45

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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.