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Finding the Fourth Proportional to 35,608.40, 53,412.60 and 34,917.20

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Solution

The fourth proportional to 35,608.40, 53,412.60 and 34,917.20 is: 52,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,608.40 : 53,412.60 = 34,917.20 : x
  2. Step 2: Convert to fraction form
    35,608.40/53,412.60 = 34,917.20/x
  3. Step 3: Cross multiply
    35,608.40x = 53,412.60 × 34,917.20
  4. Step 4: Simplify right side
    35,608.40x = 1,865,018,436.72
  5. Step 5: Solve for x
    x = 1,865,018,436.72/35,608.40
  6. Step 6: Final answer
    x = 52,375.80

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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.