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Finding the Fourth Proportional to 13,384.44, 20,193.53 and 13,347.53

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Solution

The fourth proportional to 13,384.44, 20,193.53 and 13,347.53 is: 20,137.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.44 : 20,193.53 = 13,347.53 : x
  2. Step 2: Convert to fraction form
    13,384.44/20,193.53 = 13,347.53/x
  3. Step 3: Cross multiply
    13,384.44x = 20,193.53 × 13,347.53
  4. Step 4: Simplify right side
    13,384.44x = 269,533,806.63
  5. Step 5: Solve for x
    x = 269,533,806.63/13,384.44
  6. Step 6: Final answer
    x = 20,137.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.