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Finding the Fourth Proportional to 14,762.87, 20,372.79 and 8,048.40

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Solution

The fourth proportional to 14,762.87, 20,372.79 and 8,048.40 is: 11,106.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,762.87 : 20,372.79 = 8,048.40 : x
  2. Step 2: Convert to fraction form
    14,762.87/20,372.79 = 8,048.40/x
  3. Step 3: Cross multiply
    14,762.87x = 20,372.79 × 8,048.40
  4. Step 4: Simplify right side
    14,762.87x = 163,968,363.04
  5. Step 5: Solve for x
    x = 163,968,363.04/14,762.87
  6. Step 6: Final answer
    x = 11,106.81

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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.