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Finding the Fourth Proportional to 30,571.70, 45,855.66 and 10,847.66

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Solution

The fourth proportional to 30,571.70, 45,855.66 and 10,847.66 is: 16,270.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,571.70 : 45,855.66 = 10,847.66 : x
  2. Step 2: Convert to fraction form
    30,571.70/45,855.66 = 10,847.66/x
  3. Step 3: Cross multiply
    30,571.70x = 45,855.66 × 10,847.66
  4. Step 4: Simplify right side
    30,571.70x = 497,426,608.76
  5. Step 5: Solve for x
    x = 497,426,608.76/30,571.70
  6. Step 6: Final answer
    x = 16,270.82

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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.