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Finding the Fourth Proportional to 39,000.66, 58,510.53 and 12,705.54

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Solution

The fourth proportional to 39,000.66, 58,510.53 and 12,705.54 is: 19,061.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,000.66 : 58,510.53 = 12,705.54 : x
  2. Step 2: Convert to fraction form
    39,000.66/58,510.53 = 12,705.54/x
  3. Step 3: Cross multiply
    39,000.66x = 58,510.53 × 12,705.54
  4. Step 4: Simplify right side
    39,000.66x = 743,407,879.34
  5. Step 5: Solve for x
    x = 743,407,879.34/39,000.66
  6. Step 6: Final answer
    x = 19,061.42

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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.