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Finding the Fourth Proportional to 35,907.60, 53,863.80 and 12,214.80

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Solution

The fourth proportional to 35,907.60, 53,863.80 and 12,214.80 is: 18,323.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,907.60 : 53,863.80 = 12,214.80 : x
  2. Step 2: Convert to fraction form
    35,907.60/53,863.80 = 12,214.80/x
  3. Step 3: Cross multiply
    35,907.60x = 53,863.80 × 12,214.80
  4. Step 4: Simplify right side
    35,907.60x = 657,935,544.24
  5. Step 5: Solve for x
    x = 657,935,544.24/35,907.60
  6. Step 6: Final answer
    x = 18,323.02

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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.