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Finding the Fourth Proportional to 12,700.95, 19,044.46 and 3,933.43

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Solution

The fourth proportional to 12,700.95, 19,044.46 and 3,933.43 is: 5,897.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.95 : 19,044.46 = 3,933.43 : x
  2. Step 2: Convert to fraction form
    12,700.95/19,044.46 = 3,933.43/x
  3. Step 3: Cross multiply
    12,700.95x = 19,044.46 × 3,933.43
  4. Step 4: Simplify right side
    12,700.95x = 74,909,935.41
  5. Step 5: Solve for x
    x = 74,909,935.41/12,700.95
  6. Step 6: Final answer
    x = 5,897.98

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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.