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Finding the Fourth Proportional to 20,637.91, 30,957.05 and 6,597.82

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Solution

The fourth proportional to 20,637.91, 30,957.05 and 6,597.82 is: 9,896.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637.91 : 30,957.05 = 6,597.82 : x
  2. Step 2: Convert to fraction form
    20,637.91/30,957.05 = 6,597.82/x
  3. Step 3: Cross multiply
    20,637.91x = 30,957.05 × 6,597.82
  4. Step 4: Simplify right side
    20,637.91x = 204,249,043.63
  5. Step 5: Solve for x
    x = 204,249,043.63/20,637.91
  6. Step 6: Final answer
    x = 9,896.79

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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.