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Finding the Fourth Proportional to 20,893.52, 31,526.60 and 20,083.52

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Solution

The fourth proportional to 20,893.52, 31,526.60 and 20,083.52 is: 30,304.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.52 : 31,526.60 = 20,083.52 : x
  2. Step 2: Convert to fraction form
    20,893.52/31,526.60 = 20,083.52/x
  3. Step 3: Cross multiply
    20,893.52x = 31,526.60 × 20,083.52
  4. Step 4: Simplify right side
    20,893.52x = 633,165,101.63
  5. Step 5: Solve for x
    x = 633,165,101.63/20,893.52
  6. Step 6: Final answer
    x = 30,304.38

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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.