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Finding the Fourth Proportional to 20,606.58, 30,953.58 and 19,406.82

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Solution

The fourth proportional to 20,606.58, 30,953.58 and 19,406.82 is: 29,151.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.58 : 30,953.58 = 19,406.82 : x
  2. Step 2: Convert to fraction form
    20,606.58/30,953.58 = 19,406.82/x
  3. Step 3: Cross multiply
    20,606.58x = 30,953.58 × 19,406.82
  4. Step 4: Simplify right side
    20,606.58x = 600,710,555.42
  5. Step 5: Solve for x
    x = 600,710,555.42/20,606.58
  6. Step 6: Final answer
    x = 29,151.40

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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.