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Finding the Fourth Proportional to 35,268.71, 52,907.08 and 12,789.98

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Solution

The fourth proportional to 35,268.71, 52,907.08 and 12,789.98 is: 19,186.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,268.71 : 52,907.08 = 12,789.98 : x
  2. Step 2: Convert to fraction form
    35,268.71/52,907.08 = 12,789.98/x
  3. Step 3: Cross multiply
    35,268.71x = 52,907.08 × 12,789.98
  4. Step 4: Simplify right side
    35,268.71x = 676,680,495.06
  5. Step 5: Solve for x
    x = 676,680,495.06/35,268.71
  6. Step 6: Final answer
    x = 19,186.43

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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.