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Finding the Fourth Proportional to 13,392.79, 20,093.76 and 4,509.04

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Solution

The fourth proportional to 13,392.79, 20,093.76 and 4,509.04 is: 6,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.79 : 20,093.76 = 4,509.04 : x
  2. Step 2: Convert to fraction form
    13,392.79/20,093.76 = 4,509.04/x
  3. Step 3: Cross multiply
    13,392.79x = 20,093.76 × 4,509.04
  4. Step 4: Simplify right side
    13,392.79x = 90,603,567.59
  5. Step 5: Solve for x
    x = 90,603,567.59/13,392.79
  6. Step 6: Final answer
    x = 6,765.10

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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.