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Finding the Fourth Proportional to 43,284.99, 64,920.99 and 13,698.99

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Solution

The fourth proportional to 43,284.99, 64,920.99 and 13,698.99 is: 20,546.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,284.99 : 64,920.99 = 13,698.99 : x
  2. Step 2: Convert to fraction form
    43,284.99/64,920.99 = 13,698.99/x
  3. Step 3: Cross multiply
    43,284.99x = 64,920.99 × 13,698.99
  4. Step 4: Simplify right side
    43,284.99x = 889,351,992.80
  5. Step 5: Solve for x
    x = 889,351,992.80/43,284.99
  6. Step 6: Final answer
    x = 20,546.43

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1.5x scale

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.