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Finding the Fourth Proportional to 29,430.98, 44,145.30 and 7,243.28

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Solution

The fourth proportional to 29,430.98, 44,145.30 and 7,243.28 is: 10,864.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,430.98 : 44,145.30 = 7,243.28 : x
  2. Step 2: Convert to fraction form
    29,430.98/44,145.30 = 7,243.28/x
  3. Step 3: Cross multiply
    29,430.98x = 44,145.30 × 7,243.28
  4. Step 4: Simplify right side
    29,430.98x = 319,756,768.58
  5. Step 5: Solve for x
    x = 319,756,768.58/29,430.98
  6. Step 6: Final answer
    x = 10,864.63

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.