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Finding the Fourth Proportional to 8,993.61, 12,410.66 and 5,015.00

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Solution

The fourth proportional to 8,993.61, 12,410.66 and 5,015.00 is: 6,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.61 : 12,410.66 = 5,015.00 : x
  2. Step 2: Convert to fraction form
    8,993.61/12,410.66 = 5,015.00/x
  3. Step 3: Cross multiply
    8,993.61x = 12,410.66 × 5,015.00
  4. Step 4: Simplify right side
    8,993.61x = 62,239,372.77
  5. Step 5: Solve for x
    x = 62,239,372.77/8,993.61
  6. Step 6: Final answer
    x = 6,920.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.