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Finding the Fourth Proportional to 31,406.80, 47,059.80 and 16,596.40

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Solution

The fourth proportional to 31,406.80, 47,059.80 and 16,596.40 is: 24,867.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,406.80 : 47,059.80 = 16,596.40 : x
  2. Step 2: Convert to fraction form
    31,406.80/47,059.80 = 16,596.40/x
  3. Step 3: Cross multiply
    31,406.80x = 47,059.80 × 16,596.40
  4. Step 4: Simplify right side
    31,406.80x = 781,023,264.72
  5. Step 5: Solve for x
    x = 781,023,264.72/31,406.80
  6. Step 6: Final answer
    x = 24,867.97

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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.