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Finding the Fourth Proportional to 53,662.95, 80,494.43 and 18,602.61

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Solution

The fourth proportional to 53,662.95, 80,494.43 and 18,602.61 is: 27,903.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,662.95 : 80,494.43 = 18,602.61 : x
  2. Step 2: Convert to fraction form
    53,662.95/80,494.43 = 18,602.61/x
  3. Step 3: Cross multiply
    53,662.95x = 80,494.43 × 18,602.61
  4. Step 4: Simplify right side
    53,662.95x = 1,497,406,395.45
  5. Step 5: Solve for x
    x = 1,497,406,395.45/53,662.95
  6. Step 6: Final answer
    x = 27,903.92

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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.