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Finding the Fourth Proportional to 25,599.69, 38,416.83 and 8,959.86

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Solution

The fourth proportional to 25,599.69, 38,416.83 and 8,959.86 is: 13,445.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,599.69 : 38,416.83 = 8,959.86 : x
  2. Step 2: Convert to fraction form
    25,599.69/38,416.83 = 8,959.86/x
  3. Step 3: Cross multiply
    25,599.69x = 38,416.83 × 8,959.86
  4. Step 4: Simplify right side
    25,599.69x = 344,209,418.44
  5. Step 5: Solve for x
    x = 344,209,418.44/25,599.69
  6. Step 6: Final answer
    x = 13,445.84

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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.