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Finding the Fourth Proportional to 28,703.90, 43,062.10 and 12,054.44

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Solution

The fourth proportional to 28,703.90, 43,062.10 and 12,054.44 is: 18,084.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,703.90 : 43,062.10 = 12,054.44 : x
  2. Step 2: Convert to fraction form
    28,703.90/43,062.10 = 12,054.44/x
  3. Step 3: Cross multiply
    28,703.90x = 43,062.10 × 12,054.44
  4. Step 4: Simplify right side
    28,703.90x = 519,089,500.72
  5. Step 5: Solve for x
    x = 519,089,500.72/28,703.90
  6. Step 6: Final answer
    x = 18,084.28

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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.