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Finding the Fourth Proportional to 18,563.99, 27,856.91 and 8,703.35

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Solution

The fourth proportional to 18,563.99, 27,856.91 and 8,703.35 is: 13,060.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,563.99 : 27,856.91 = 8,703.35 : x
  2. Step 2: Convert to fraction form
    18,563.99/27,856.91 = 8,703.35/x
  3. Step 3: Cross multiply
    18,563.99x = 27,856.91 × 8,703.35
  4. Step 4: Simplify right side
    18,563.99x = 242,448,424.59
  5. Step 5: Solve for x
    x = 242,448,424.59/18,563.99
  6. Step 6: Final answer
    x = 13,060.15

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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.