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Finding the Fourth Proportional to 13,602.88, 20,392.02 and 4,835.75

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Solution

The fourth proportional to 13,602.88, 20,392.02 and 4,835.75 is: 7,249.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,602.88 : 20,392.02 = 4,835.75 : x
  2. Step 2: Convert to fraction form
    13,602.88/20,392.02 = 4,835.75/x
  3. Step 3: Cross multiply
    13,602.88x = 20,392.02 × 4,835.75
  4. Step 4: Simplify right side
    13,602.88x = 98,610,761.70
  5. Step 5: Solve for x
    x = 98,610,761.70/13,602.88
  6. Step 6: Final answer
    x = 7,249.26

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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.