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Finding the Fourth Proportional to 34,065.20, 51,102.60 and 10,689.20

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Solution

The fourth proportional to 34,065.20, 51,102.60 and 10,689.20 is: 16,035.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,065.20 : 51,102.60 = 10,689.20 : x
  2. Step 2: Convert to fraction form
    34,065.20/51,102.60 = 10,689.20/x
  3. Step 3: Cross multiply
    34,065.20x = 51,102.60 × 10,689.20
  4. Step 4: Simplify right side
    34,065.20x = 546,245,911.92
  5. Step 5: Solve for x
    x = 546,245,911.92/34,065.20
  6. Step 6: Final answer
    x = 16,035.31

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1.5x scale

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.