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Finding the Fourth Proportional to 51,128.80, 76,695.80 and 16,068.80

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Solution

The fourth proportional to 51,128.80, 76,695.80 and 16,068.80 is: 24,104.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,128.80 : 76,695.80 = 16,068.80 : x
  2. Step 2: Convert to fraction form
    51,128.80/76,695.80 = 16,068.80/x
  3. Step 3: Cross multiply
    51,128.80x = 76,695.80 × 16,068.80
  4. Step 4: Simplify right side
    51,128.80x = 1,232,409,471.04
  5. Step 5: Solve for x
    x = 1,232,409,471.04/51,128.80
  6. Step 6: Final answer
    x = 24,104.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.