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Finding the Fourth Proportional to 19,093.40, 28,650.54 and 7,407.08

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Solution

The fourth proportional to 19,093.40, 28,650.54 and 7,407.08 is: 11,114.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,093.40 : 28,650.54 = 7,407.08 : x
  2. Step 2: Convert to fraction form
    19,093.40/28,650.54 = 7,407.08/x
  3. Step 3: Cross multiply
    19,093.40x = 28,650.54 × 7,407.08
  4. Step 4: Simplify right side
    19,093.40x = 212,216,841.82
  5. Step 5: Solve for x
    x = 212,216,841.82/19,093.40
  6. Step 6: Final answer
    x = 11,114.67

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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.