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Finding the Fourth Proportional to 52,905.77, 79,328.56 and 40,893.67

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Solution

The fourth proportional to 52,905.77, 79,328.56 and 40,893.67 is: 61,317.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,905.77 : 79,328.56 = 40,893.67 : x
  2. Step 2: Convert to fraction form
    52,905.77/79,328.56 = 40,893.67/x
  3. Step 3: Cross multiply
    52,905.77x = 79,328.56 × 40,893.67
  4. Step 4: Simplify right side
    52,905.77x = 3,244,035,954.22
  5. Step 5: Solve for x
    x = 3,244,035,954.22/52,905.77
  6. Step 6: Final answer
    x = 61,317.24

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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.