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Finding the Fourth Proportional to 30,043.98, 45,058.28 and 8,983.98

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Solution

The fourth proportional to 30,043.98, 45,058.28 and 8,983.98 is: 13,473.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,043.98 : 45,058.28 = 8,983.98 : x
  2. Step 2: Convert to fraction form
    30,043.98/45,058.28 = 8,983.98/x
  3. Step 3: Cross multiply
    30,043.98x = 45,058.28 × 8,983.98
  4. Step 4: Simplify right side
    30,043.98x = 404,802,641.43
  5. Step 5: Solve for x
    x = 404,802,641.43/30,043.98
  6. Step 6: Final answer
    x = 13,473.67

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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.