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Finding the Fourth Proportional to 14,762.86, 20,372.73 and 8,048.49

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Solution

The fourth proportional to 14,762.86, 20,372.73 and 8,048.49 is: 11,106.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,762.86 : 20,372.73 = 8,048.49 : x
  2. Step 2: Convert to fraction form
    14,762.86/20,372.73 = 8,048.49/x
  3. Step 3: Cross multiply
    14,762.86x = 20,372.73 × 8,048.49
  4. Step 4: Simplify right side
    14,762.86x = 163,969,692.12
  5. Step 5: Solve for x
    x = 163,969,692.12/14,762.86
  6. Step 6: Final answer
    x = 11,106.91

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1.5x scale

Why These Related Problems?

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