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Finding the Fourth Proportional to 14,762.88, 20,375.12 and 9,100.96

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Solution

The fourth proportional to 14,762.88, 20,375.12 and 9,100.96 is: 12,560.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,762.88 : 20,375.12 = 9,100.96 : x
  2. Step 2: Convert to fraction form
    14,762.88/20,375.12 = 9,100.96/x
  3. Step 3: Cross multiply
    14,762.88x = 20,375.12 × 9,100.96
  4. Step 4: Simplify right side
    14,762.88x = 185,433,152.12
  5. Step 5: Solve for x
    x = 185,433,152.12/14,762.88
  6. Step 6: Final answer
    x = 12,560.77

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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.