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Finding the Fourth Proportional to 37,419.72, 56,129.64 and 11,124.72

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Solution

The fourth proportional to 37,419.72, 56,129.64 and 11,124.72 is: 16,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,419.72 : 56,129.64 = 11,124.72 : x
  2. Step 2: Convert to fraction form
    37,419.72/56,129.64 = 11,124.72/x
  3. Step 3: Cross multiply
    37,419.72x = 56,129.64 × 11,124.72
  4. Step 4: Simplify right side
    37,419.72x = 624,426,528.70
  5. Step 5: Solve for x
    x = 624,426,528.70/37,419.72
  6. Step 6: Final answer
    x = 16,687.10

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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.