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Finding the Fourth Proportional to 58,705.35, 81,012.92 and 31,847.77

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Solution

The fourth proportional to 58,705.35, 81,012.92 and 31,847.77 is: 43,949.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,705.35 : 81,012.92 = 31,847.77 : x
  2. Step 2: Convert to fraction form
    58,705.35/81,012.92 = 31,847.77/x
  3. Step 3: Cross multiply
    58,705.35x = 81,012.92 × 31,847.77
  4. Step 4: Simplify right side
    58,705.35x = 2,580,080,843.19
  5. Step 5: Solve for x
    x = 2,580,080,843.19/58,705.35
  6. Step 6: Final answer
    x = 43,949.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.