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Finding the Fourth Proportional to 18,801.69, 25,941.56 and 10,842.09

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Solution

The fourth proportional to 18,801.69, 25,941.56 and 10,842.09 is: 14,959.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801.69 : 25,941.56 = 10,842.09 : x
  2. Step 2: Convert to fraction form
    18,801.69/25,941.56 = 10,842.09/x
  3. Step 3: Cross multiply
    18,801.69x = 25,941.56 × 10,842.09
  4. Step 4: Simplify right side
    18,801.69x = 281,260,674.05
  5. Step 5: Solve for x
    x = 281,260,674.05/18,801.69
  6. Step 6: Final answer
    x = 14,959.33

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Half scale
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Double scale
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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.