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Finding the Fourth Proportional to 35,591.88, 53,420.01 and 18,965.95

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Solution

The fourth proportional to 35,591.88, 53,420.01 and 18,965.95 is: 28,466.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,591.88 : 53,420.01 = 18,965.95 : x
  2. Step 2: Convert to fraction form
    35,591.88/53,420.01 = 18,965.95/x
  3. Step 3: Cross multiply
    35,591.88x = 53,420.01 × 18,965.95
  4. Step 4: Simplify right side
    35,591.88x = 1,013,161,238.66
  5. Step 5: Solve for x
    x = 1,013,161,238.66/35,591.88
  6. Step 6: Final answer
    x = 28,466.08

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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.