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Finding the Fourth Proportional to 48,684.56, 67,173 and 28,538.96

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Solution

The fourth proportional to 48,684.56, 67,173 and 28,538.96 is: 39,376.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,684.56 : 67,173 = 28,538.96 : x
  2. Step 2: Convert to fraction form
    48,684.56/67,173 = 28,538.96/x
  3. Step 3: Cross multiply
    48,684.56x = 67,173 × 28,538.96
  4. Step 4: Simplify right side
    48,684.56x = 1,917,047,560.08
  5. Step 5: Solve for x
    x = 1,917,047,560.08/48,684.56
  6. Step 6: Final answer
    x = 39,376.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.