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Finding the Fourth Proportional to 19,556.34, 29,334.20 and 4,765.28

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Solution

The fourth proportional to 19,556.34, 29,334.20 and 4,765.28 is: 7,147.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,556.34 : 29,334.20 = 4,765.28 : x
  2. Step 2: Convert to fraction form
    19,556.34/29,334.20 = 4,765.28/x
  3. Step 3: Cross multiply
    19,556.34x = 29,334.20 × 4,765.28
  4. Step 4: Simplify right side
    19,556.34x = 139,785,541.82
  5. Step 5: Solve for x
    x = 139,785,541.82/19,556.34
  6. Step 6: Final answer
    x = 7,147.84

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.