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Finding the Fourth Proportional to 28,676.16, 43,014.24 and 12,036.24

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Solution

The fourth proportional to 28,676.16, 43,014.24 and 12,036.24 is: 18,054.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,676.16 : 43,014.24 = 12,036.24 : x
  2. Step 2: Convert to fraction form
    28,676.16/43,014.24 = 12,036.24/x
  3. Step 3: Cross multiply
    28,676.16x = 43,014.24 × 12,036.24
  4. Step 4: Simplify right side
    28,676.16x = 517,729,716.06
  5. Step 5: Solve for x
    x = 517,729,716.06/28,676.16
  6. Step 6: Final answer
    x = 18,054.36

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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.