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Finding the Fourth Proportional to 14,419.66, 19,898.72 and 8,046.28

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Solution

The fourth proportional to 14,419.66, 19,898.72 and 8,046.28 is: 11,103.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,419.66 : 19,898.72 = 8,046.28 : x
  2. Step 2: Convert to fraction form
    14,419.66/19,898.72 = 8,046.28/x
  3. Step 3: Cross multiply
    14,419.66x = 19,898.72 × 8,046.28
  4. Step 4: Simplify right side
    14,419.66x = 160,110,672.76
  5. Step 5: Solve for x
    x = 160,110,672.76/14,419.66
  6. Step 6: Final answer
    x = 11,103.64

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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.