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Finding the Fourth Proportional to 20,565.88, 30,835.86 and 17,446.98

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Solution

The fourth proportional to 20,565.88, 30,835.86 and 17,446.98 is: 26,159.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,565.88 : 30,835.86 = 17,446.98 : x
  2. Step 2: Convert to fraction form
    20,565.88/30,835.86 = 17,446.98/x
  3. Step 3: Cross multiply
    20,565.88x = 30,835.86 × 17,446.98
  4. Step 4: Simplify right side
    20,565.88x = 537,992,632.70
  5. Step 5: Solve for x
    x = 537,992,632.70/20,565.88
  6. Step 6: Final answer
    x = 26,159.48

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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.