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Finding the Fourth Proportional to 71,611.81, 98,827.10 and 48,998.23

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Solution

The fourth proportional to 71,611.81, 98,827.10 and 48,998.23 is: 67,619.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,611.81 : 98,827.10 = 48,998.23 : x
  2. Step 2: Convert to fraction form
    71,611.81/98,827.10 = 48,998.23/x
  3. Step 3: Cross multiply
    71,611.81x = 98,827.10 × 48,998.23
  4. Step 4: Simplify right side
    71,611.81x = 4,842,352,667.72
  5. Step 5: Solve for x
    x = 4,842,352,667.72/71,611.81
  6. Step 6: Final answer
    x = 67,619.47

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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.