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Finding the Fourth Proportional to 28,888.44, 43,303.50 and 11,351.40

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Solution

The fourth proportional to 28,888.44, 43,303.50 and 11,351.40 is: 17,015.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,888.44 : 43,303.50 = 11,351.40 : x
  2. Step 2: Convert to fraction form
    28,888.44/43,303.50 = 11,351.40/x
  3. Step 3: Cross multiply
    28,888.44x = 43,303.50 × 11,351.40
  4. Step 4: Simplify right side
    28,888.44x = 491,555,349.90
  5. Step 5: Solve for x
    x = 491,555,349.90/28,888.44
  6. Step 6: Final answer
    x = 17,015.64

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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.