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Finding the Fourth Proportional to 30,401.70, 45,597.99 and 9,622.50

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Solution

The fourth proportional to 30,401.70, 45,597.99 and 9,622.50 is: 14,432.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,401.70 : 45,597.99 = 9,622.50 : x
  2. Step 2: Convert to fraction form
    30,401.70/45,597.99 = 9,622.50/x
  3. Step 3: Cross multiply
    30,401.70x = 45,597.99 × 9,622.50
  4. Step 4: Simplify right side
    30,401.70x = 438,766,658.78
  5. Step 5: Solve for x
    x = 438,766,658.78/30,401.70
  6. Step 6: Final answer
    x = 14,432.31

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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.