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Finding the Fourth Proportional to 30,803.40, 46,205.10 and 16,806.60

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Solution

The fourth proportional to 30,803.40, 46,205.10 and 16,806.60 is: 25,209.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,803.40 : 46,205.10 = 16,806.60 : x
  2. Step 2: Convert to fraction form
    30,803.40/46,205.10 = 16,806.60/x
  3. Step 3: Cross multiply
    30,803.40x = 46,205.10 × 16,806.60
  4. Step 4: Simplify right side
    30,803.40x = 776,550,633.66
  5. Step 5: Solve for x
    x = 776,550,633.66/30,803.40
  6. Step 6: Final answer
    x = 25,209.90

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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.