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Finding the Fourth Proportional to 68,912.94, 95,104.58 and 38,289.73

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Solution

The fourth proportional to 68,912.94, 95,104.58 and 38,289.73 is: 52,842.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,912.94 : 95,104.58 = 38,289.73 : x
  2. Step 2: Convert to fraction form
    68,912.94/95,104.58 = 38,289.73/x
  3. Step 3: Cross multiply
    68,912.94x = 95,104.58 × 38,289.73
  4. Step 4: Simplify right side
    68,912.94x = 3,641,528,547.93
  5. Step 5: Solve for x
    x = 3,641,528,547.93/68,912.94
  6. Step 6: Final answer
    x = 52,842.45

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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.