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Finding the Fourth Proportional to 25,604.86, 38,407.29 and 8,076.05

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Solution

The fourth proportional to 25,604.86, 38,407.29 and 8,076.05 is: 12,114.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,604.86 : 38,407.29 = 8,076.05 : x
  2. Step 2: Convert to fraction form
    25,604.86/38,407.29 = 8,076.05/x
  3. Step 3: Cross multiply
    25,604.86x = 38,407.29 × 8,076.05
  4. Step 4: Simplify right side
    25,604.86x = 310,179,194.40
  5. Step 5: Solve for x
    x = 310,179,194.40/25,604.86
  6. Step 6: Final answer
    x = 12,114.08

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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.