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Finding the Fourth Proportional to 26,886.48, 40,323.24 and 8,418.48

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Solution

The fourth proportional to 26,886.48, 40,323.24 and 8,418.48 is: 12,625.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,886.48 : 40,323.24 = 8,418.48 : x
  2. Step 2: Convert to fraction form
    26,886.48/40,323.24 = 8,418.48/x
  3. Step 3: Cross multiply
    26,886.48x = 40,323.24 × 8,418.48
  4. Step 4: Simplify right side
    26,886.48x = 339,460,389.48
  5. Step 5: Solve for x
    x = 339,460,389.48/26,886.48
  6. Step 6: Final answer
    x = 12,625.69

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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.