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Finding the Fourth Proportional to 30,465.72, 45,687.24 and 10,738.98

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Solution

The fourth proportional to 30,465.72, 45,687.24 and 10,738.98 is: 16,104.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,465.72 : 45,687.24 = 10,738.98 : x
  2. Step 2: Convert to fraction form
    30,465.72/45,687.24 = 10,738.98/x
  3. Step 3: Cross multiply
    30,465.72x = 45,687.24 × 10,738.98
  4. Step 4: Simplify right side
    30,465.72x = 490,634,356.62
  5. Step 5: Solve for x
    x = 490,634,356.62/30,465.72
  6. Step 6: Final answer
    x = 16,104.47

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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.