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Finding the Fourth Proportional to 22,909.86, 34,295.62 and 20,719.62

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Solution

The fourth proportional to 22,909.86, 34,295.62 and 20,719.62 is: 31,016.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,909.86 : 34,295.62 = 20,719.62 : x
  2. Step 2: Convert to fraction form
    22,909.86/34,295.62 = 20,719.62/x
  3. Step 3: Cross multiply
    22,909.86x = 34,295.62 × 20,719.62
  4. Step 4: Simplify right side
    22,909.86x = 710,592,214.06
  5. Step 5: Solve for x
    x = 710,592,214.06/22,909.86
  6. Step 6: Final answer
    x = 31,016.87

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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.