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Finding the Fourth Proportional to 20,527.52, 28,326.29 and 12,028.52

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Solution

The fourth proportional to 20,527.52, 28,326.29 and 12,028.52 is: 16,598.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.52 : 28,326.29 = 12,028.52 : x
  2. Step 2: Convert to fraction form
    20,527.52/28,326.29 = 12,028.52/x
  3. Step 3: Cross multiply
    20,527.52x = 28,326.29 × 12,028.52
  4. Step 4: Simplify right side
    20,527.52x = 340,723,144.02
  5. Step 5: Solve for x
    x = 340,723,144.02/20,527.52
  6. Step 6: Final answer
    x = 16,598.36

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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.