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Finding the Fourth Proportional to 30,481.70, 45,722.55 and 14,929.70

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Solution

The fourth proportional to 30,481.70, 45,722.55 and 14,929.70 is: 22,394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,481.70 : 45,722.55 = 14,929.70 : x
  2. Step 2: Convert to fraction form
    30,481.70/45,722.55 = 14,929.70/x
  3. Step 3: Cross multiply
    30,481.70x = 45,722.55 × 14,929.70
  4. Step 4: Simplify right side
    30,481.70x = 682,623,954.74
  5. Step 5: Solve for x
    x = 682,623,954.74/30,481.70
  6. Step 6: Final answer
    x = 22,394.55

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1.5x scale

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.