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Finding the Fourth Proportional to 35,751.60, 53,643.24 and 12,394.80

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Solution

The fourth proportional to 35,751.60, 53,643.24 and 12,394.80 is: 18,597.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,751.60 : 53,643.24 = 12,394.80 : x
  2. Step 2: Convert to fraction form
    35,751.60/53,643.24 = 12,394.80/x
  3. Step 3: Cross multiply
    35,751.60x = 53,643.24 × 12,394.80
  4. Step 4: Simplify right side
    35,751.60x = 664,897,231.15
  5. Step 5: Solve for x
    x = 664,897,231.15/35,751.60
  6. Step 6: Final answer
    x = 18,597.69

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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.