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Finding the Fourth Proportional to 35,590.62, 53,367.78 and 11,889.64

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Solution

The fourth proportional to 35,590.62, 53,367.78 and 11,889.64 is: 17,828.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,590.62 : 53,367.78 = 11,889.64 : x
  2. Step 2: Convert to fraction form
    35,590.62/53,367.78 = 11,889.64/x
  3. Step 3: Cross multiply
    35,590.62x = 53,367.78 × 11,889.64
  4. Step 4: Simplify right side
    35,590.62x = 634,523,691.80
  5. Step 5: Solve for x
    x = 634,523,691.80/35,590.62
  6. Step 6: Final answer
    x = 17,828.40

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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.