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Finding the Fourth Proportional to 46,679.70, 69,973.98 and 18,591.30

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Solution

The fourth proportional to 46,679.70, 69,973.98 and 18,591.30 is: 27,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,679.70 : 69,973.98 = 18,591.30 : x
  2. Step 2: Convert to fraction form
    46,679.70/69,973.98 = 18,591.30/x
  3. Step 3: Cross multiply
    46,679.70x = 69,973.98 × 18,591.30
  4. Step 4: Simplify right side
    46,679.70x = 1,300,907,254.37
  5. Step 5: Solve for x
    x = 1,300,907,254.37/46,679.70
  6. Step 6: Final answer
    x = 27,868.80

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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.