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Finding the Fourth Proportional to 20,614.52, 30,925.90 and 6,574.08

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Solution

The fourth proportional to 20,614.52, 30,925.90 and 6,574.08 is: 9,862.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,614.52 : 30,925.90 = 6,574.08 : x
  2. Step 2: Convert to fraction form
    20,614.52/30,925.90 = 6,574.08/x
  3. Step 3: Cross multiply
    20,614.52x = 30,925.90 × 6,574.08
  4. Step 4: Simplify right side
    20,614.52x = 203,309,464.86
  5. Step 5: Solve for x
    x = 203,309,464.86/20,614.52
  6. Step 6: Final answer
    x = 9,862.44

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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.