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Finding the Fourth Proportional to 30,357.40, 41,893.03 and 16,928.82

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Solution

The fourth proportional to 30,357.40, 41,893.03 and 16,928.82 is: 23,361.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,357.40 : 41,893.03 = 16,928.82 : x
  2. Step 2: Convert to fraction form
    30,357.40/41,893.03 = 16,928.82/x
  3. Step 3: Cross multiply
    30,357.40x = 41,893.03 × 16,928.82
  4. Step 4: Simplify right side
    30,357.40x = 709,199,564.12
  5. Step 5: Solve for x
    x = 709,199,564.12/30,357.40
  6. Step 6: Final answer
    x = 23,361.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.