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Finding the Fourth Proportional to 34,660.88, 51,991.32 and 8,365.60

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Solution

The fourth proportional to 34,660.88, 51,991.32 and 8,365.60 is: 12,548.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,660.88 : 51,991.32 = 8,365.60 : x
  2. Step 2: Convert to fraction form
    34,660.88/51,991.32 = 8,365.60/x
  3. Step 3: Cross multiply
    34,660.88x = 51,991.32 × 8,365.60
  4. Step 4: Simplify right side
    34,660.88x = 434,938,586.59
  5. Step 5: Solve for x
    x = 434,938,586.59/34,660.88
  6. Step 6: Final answer
    x = 12,548.40

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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.