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Finding the Fourth Proportional to 11,903.86, 17,843.20 and 4,402.60

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Solution

The fourth proportional to 11,903.86, 17,843.20 and 4,402.60 is: 6,599.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,903.86 : 17,843.20 = 4,402.60 : x
  2. Step 2: Convert to fraction form
    11,903.86/17,843.20 = 4,402.60/x
  3. Step 3: Cross multiply
    11,903.86x = 17,843.20 × 4,402.60
  4. Step 4: Simplify right side
    11,903.86x = 78,556,368.19
  5. Step 5: Solve for x
    x = 78,556,368.19/11,903.86
  6. Step 6: Final answer
    x = 6,599.24

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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.