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Finding the Fourth Proportional to 60,679.48, 91,019.67 and 18,560.31

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Solution

The fourth proportional to 60,679.48, 91,019.67 and 18,560.31 is: 27,840.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,679.48 : 91,019.67 = 18,560.31 : x
  2. Step 2: Convert to fraction form
    60,679.48/91,019.67 = 18,560.31/x
  3. Step 3: Cross multiply
    60,679.48x = 91,019.67 × 18,560.31
  4. Step 4: Simplify right side
    60,679.48x = 1,689,353,804.95
  5. Step 5: Solve for x
    x = 1,689,353,804.95/60,679.48
  6. Step 6: Final answer
    x = 27,840.61

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1.5x scale

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.