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Finding the Fourth Proportional to 20,544.79, 28,352.19 and 12,053.01

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Solution

The fourth proportional to 20,544.79, 28,352.19 and 12,053.01 is: 16,633.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.79 : 28,352.19 = 12,053.01 : x
  2. Step 2: Convert to fraction form
    20,544.79/28,352.19 = 12,053.01/x
  3. Step 3: Cross multiply
    20,544.79x = 28,352.19 × 12,053.01
  4. Step 4: Simplify right side
    20,544.79x = 341,729,229.59
  5. Step 5: Solve for x
    x = 341,729,229.59/20,544.79
  6. Step 6: Final answer
    x = 16,633.38

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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.