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Finding the Fourth Proportional to 26,412, 36,448.64 and 15,236.16

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Solution

The fourth proportional to 26,412, 36,448.64 and 15,236.16 is: 21,025.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,412 : 36,448.64 = 15,236.16 : x
  2. Step 2: Convert to fraction form
    26,412/36,448.64 = 15,236.16/x
  3. Step 3: Cross multiply
    26,412x = 36,448.64 × 15,236.16
  4. Step 4: Simplify right side
    26,412x = 555,337,310.82
  5. Step 5: Solve for x
    x = 555,337,310.82/26,412
  6. Step 6: Final answer
    x = 21,025.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.