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Finding the Fourth Proportional to 13,797.76, 20,697.02 and 4,438.72

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Solution

The fourth proportional to 13,797.76, 20,697.02 and 4,438.72 is: 6,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,797.76 : 20,697.02 = 4,438.72 : x
  2. Step 2: Convert to fraction form
    13,797.76/20,697.02 = 4,438.72/x
  3. Step 3: Cross multiply
    13,797.76x = 20,697.02 × 4,438.72
  4. Step 4: Simplify right side
    13,797.76x = 91,868,276.61
  5. Step 5: Solve for x
    x = 91,868,276.61/13,797.76
  6. Step 6: Final answer
    x = 6,658.20

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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.