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Finding the Fourth Proportional to 20,444.94, 30,670.74 and 7,293.78

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Solution

The fourth proportional to 20,444.94, 30,670.74 and 7,293.78 is: 10,941.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,444.94 : 30,670.74 = 7,293.78 : x
  2. Step 2: Convert to fraction form
    20,444.94/30,670.74 = 7,293.78/x
  3. Step 3: Cross multiply
    20,444.94x = 30,670.74 × 7,293.78
  4. Step 4: Simplify right side
    20,444.94x = 223,705,630.00
  5. Step 5: Solve for x
    x = 223,705,630.00/20,444.94
  6. Step 6: Final answer
    x = 10,941.86

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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.