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Finding the Fourth Proportional to 46,712.70, 69,992.10 and 26,956.80

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Solution

The fourth proportional to 46,712.70, 69,992.10 and 26,956.80 is: 40,390.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,712.70 : 69,992.10 = 26,956.80 : x
  2. Step 2: Convert to fraction form
    46,712.70/69,992.10 = 26,956.80/x
  3. Step 3: Cross multiply
    46,712.70x = 69,992.10 × 26,956.80
  4. Step 4: Simplify right side
    46,712.70x = 1,886,763,041.28
  5. Step 5: Solve for x
    x = 1,886,763,041.28/46,712.70
  6. Step 6: Final answer
    x = 40,390.79

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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.