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Finding the Fourth Proportional to 8,860.97, 13,289.61 and 3,927.46

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Solution

The fourth proportional to 8,860.97, 13,289.61 and 3,927.46 is: 5,890.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.97 : 13,289.61 = 3,927.46 : x
  2. Step 2: Convert to fraction form
    8,860.97/13,289.61 = 3,927.46/x
  3. Step 3: Cross multiply
    8,860.97x = 13,289.61 × 3,927.46
  4. Step 4: Simplify right side
    8,860.97x = 52,194,411.69
  5. Step 5: Solve for x
    x = 52,194,411.69/8,860.97
  6. Step 6: Final answer
    x = 5,890.37

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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.