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Finding the Fourth Proportional to 43,970.58, 65,954.79 and 12,806.10

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Solution

The fourth proportional to 43,970.58, 65,954.79 and 12,806.10 is: 19,208.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,970.58 : 65,954.79 = 12,806.10 : x
  2. Step 2: Convert to fraction form
    43,970.58/65,954.79 = 12,806.10/x
  3. Step 3: Cross multiply
    43,970.58x = 65,954.79 × 12,806.10
  4. Step 4: Simplify right side
    43,970.58x = 844,623,636.22
  5. Step 5: Solve for x
    x = 844,623,636.22/43,970.58
  6. Step 6: Final answer
    x = 19,208.84

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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.