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Finding the Fourth Proportional to 60,703.84, 91,069.29 and 18,589.84

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Solution

The fourth proportional to 60,703.84, 91,069.29 and 18,589.84 is: 27,888.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,703.84 : 91,069.29 = 18,589.84 : x
  2. Step 2: Convert to fraction form
    60,703.84/91,069.29 = 18,589.84/x
  3. Step 3: Cross multiply
    60,703.84x = 91,069.29 × 18,589.84
  4. Step 4: Simplify right side
    60,703.84x = 1,692,963,530.01
  5. Step 5: Solve for x
    x = 1,692,963,530.01/60,703.84
  6. Step 6: Final answer
    x = 27,888.90

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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.