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Finding the Fourth Proportional to 14,046.64, 19,385.19 and 8,078.96

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Solution

The fourth proportional to 14,046.64, 19,385.19 and 8,078.96 is: 11,149.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,046.64 : 19,385.19 = 8,078.96 : x
  2. Step 2: Convert to fraction form
    14,046.64/19,385.19 = 8,078.96/x
  3. Step 3: Cross multiply
    14,046.64x = 19,385.19 × 8,078.96
  4. Step 4: Simplify right side
    14,046.64x = 156,612,223.07
  5. Step 5: Solve for x
    x = 156,612,223.07/14,046.64
  6. Step 6: Final answer
    x = 11,149.45

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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.