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Finding the Fourth Proportional to 34,079.96, 47,026.26 and 18,969

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Solution

The fourth proportional to 34,079.96, 47,026.26 and 18,969 is: 26,174.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,079.96 : 47,026.26 = 18,969 : x
  2. Step 2: Convert to fraction form
    34,079.96/47,026.26 = 18,969/x
  3. Step 3: Cross multiply
    34,079.96x = 47,026.26 × 18,969
  4. Step 4: Simplify right side
    34,079.96x = 892,041,125.94
  5. Step 5: Solve for x
    x = 892,041,125.94/34,079.96
  6. Step 6: Final answer
    x = 26,174.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.