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Finding the Fourth Proportional to 14,729, 20,325.86 and 8,760.54

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Solution

The fourth proportional to 14,729, 20,325.86 and 8,760.54 is: 12,089.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,729 : 20,325.86 = 8,760.54 : x
  2. Step 2: Convert to fraction form
    14,729/20,325.86 = 8,760.54/x
  3. Step 3: Cross multiply
    14,729x = 20,325.86 × 8,760.54
  4. Step 4: Simplify right side
    14,729x = 178,065,509.56
  5. Step 5: Solve for x
    x = 178,065,509.56/14,729
  6. Step 6: Final answer
    x = 12,089.45

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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.