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Finding the Fourth Proportional to 40,369.50, 55,709.91 and 22,705.50

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Solution

The fourth proportional to 40,369.50, 55,709.91 and 22,705.50 is: 31,333.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,369.50 : 55,709.91 = 22,705.50 : x
  2. Step 2: Convert to fraction form
    40,369.50/55,709.91 = 22,705.50/x
  3. Step 3: Cross multiply
    40,369.50x = 55,709.91 × 22,705.50
  4. Step 4: Simplify right side
    40,369.50x = 1,264,921,361.51
  5. Step 5: Solve for x
    x = 1,264,921,361.51/40,369.50
  6. Step 6: Final answer
    x = 31,333.59

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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.