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Finding the Fourth Proportional to 19,135.08, 28,703.94 and 8,030.70

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Solution

The fourth proportional to 19,135.08, 28,703.94 and 8,030.70 is: 12,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.08 : 28,703.94 = 8,030.70 : x
  2. Step 2: Convert to fraction form
    19,135.08/28,703.94 = 8,030.70/x
  3. Step 3: Cross multiply
    19,135.08x = 28,703.94 × 8,030.70
  4. Step 4: Simplify right side
    19,135.08x = 230,512,730.96
  5. Step 5: Solve for x
    x = 230,512,730.96/19,135.08
  6. Step 6: Final answer
    x = 12,046.60

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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.