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Finding the Fourth Proportional to 71,202.84, 98,258.23 and 38,936.08

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Solution

The fourth proportional to 71,202.84, 98,258.23 and 38,936.08 is: 53,730.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,202.84 : 98,258.23 = 38,936.08 : x
  2. Step 2: Convert to fraction form
    71,202.84/98,258.23 = 38,936.08/x
  3. Step 3: Cross multiply
    71,202.84x = 98,258.23 × 38,936.08
  4. Step 4: Simplify right side
    71,202.84x = 3,825,790,303.94
  5. Step 5: Solve for x
    x = 3,825,790,303.94/71,202.84
  6. Step 6: Final answer
    x = 53,730.87

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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.