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Finding the Fourth Proportional to 48,928.63, 73,392.94 and 11,992.63

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Solution

The fourth proportional to 48,928.63, 73,392.94 and 11,992.63 is: 17,988.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,928.63 : 73,392.94 = 11,992.63 : x
  2. Step 2: Convert to fraction form
    48,928.63/73,392.94 = 11,992.63/x
  3. Step 3: Cross multiply
    48,928.63x = 73,392.94 × 11,992.63
  4. Step 4: Simplify right side
    48,928.63x = 880,174,007.07
  5. Step 5: Solve for x
    x = 880,174,007.07/48,928.63
  6. Step 6: Final answer
    x = 17,988.94

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Similar ratio
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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.