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Finding the Fourth Proportional to 18,394.98, 25,383.82 and 10,011.30

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Solution

The fourth proportional to 18,394.98, 25,383.82 and 10,011.30 is: 13,814.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394.98 : 25,383.82 = 10,011.30 : x
  2. Step 2: Convert to fraction form
    18,394.98/25,383.82 = 10,011.30/x
  3. Step 3: Cross multiply
    18,394.98x = 25,383.82 × 10,011.30
  4. Step 4: Simplify right side
    18,394.98x = 254,125,037.17
  5. Step 5: Solve for x
    x = 254,125,037.17/18,394.98
  6. Step 6: Final answer
    x = 13,814.91

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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.