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Finding the Fourth Proportional to 28,959.53, 43,430.05 and 9,233.47

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Solution

The fourth proportional to 28,959.53, 43,430.05 and 9,233.47 is: 13,847.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,959.53 : 43,430.05 = 9,233.47 : x
  2. Step 2: Convert to fraction form
    28,959.53/43,430.05 = 9,233.47/x
  3. Step 3: Cross multiply
    28,959.53x = 43,430.05 × 9,233.47
  4. Step 4: Simplify right side
    28,959.53x = 401,010,063.77
  5. Step 5: Solve for x
    x = 401,010,063.77/28,959.53
  6. Step 6: Final answer
    x = 13,847.26

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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.