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Finding the Fourth Proportional to 40,364.80, 60,525.60 and 16,964.80

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Solution

The fourth proportional to 40,364.80, 60,525.60 and 16,964.80 is: 25,438.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,364.80 : 60,525.60 = 16,964.80 : x
  2. Step 2: Convert to fraction form
    40,364.80/60,525.60 = 16,964.80/x
  3. Step 3: Cross multiply
    40,364.80x = 60,525.60 × 16,964.80
  4. Step 4: Simplify right side
    40,364.80x = 1,026,804,698.88
  5. Step 5: Solve for x
    x = 1,026,804,698.88/40,364.80
  6. Step 6: Final answer
    x = 25,438.12

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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.