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Finding the Fourth Proportional to 39,289.50, 58,945.07 and 11,587.50

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Solution

The fourth proportional to 39,289.50, 58,945.07 and 11,587.50 is: 17,384.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,289.50 : 58,945.07 = 11,587.50 : x
  2. Step 2: Convert to fraction form
    39,289.50/58,945.07 = 11,587.50/x
  3. Step 3: Cross multiply
    39,289.50x = 58,945.07 × 11,587.50
  4. Step 4: Simplify right side
    39,289.50x = 683,025,998.63
  5. Step 5: Solve for x
    x = 683,025,998.63/39,289.50
  6. Step 6: Final answer
    x = 17,384.44

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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.