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Finding the Fourth Proportional to 40,405.50, 60,610.68 and 12,703.50

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Solution

The fourth proportional to 40,405.50, 60,610.68 and 12,703.50 is: 19,056.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,405.50 : 60,610.68 = 12,703.50 : x
  2. Step 2: Convert to fraction form
    40,405.50/60,610.68 = 12,703.50/x
  3. Step 3: Cross multiply
    40,405.50x = 60,610.68 × 12,703.50
  4. Step 4: Simplify right side
    40,405.50x = 769,967,773.38
  5. Step 5: Solve for x
    x = 769,967,773.38/40,405.50
  6. Step 6: Final answer
    x = 19,056.01

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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.