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Finding the Fourth Proportional to 71,182.03, 98,226.39 and 39,346.60

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Solution

The fourth proportional to 71,182.03, 98,226.39 and 39,346.60 is: 54,295.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,182.03 : 98,226.39 = 39,346.60 : x
  2. Step 2: Convert to fraction form
    71,182.03/98,226.39 = 39,346.60/x
  3. Step 3: Cross multiply
    71,182.03x = 98,226.39 × 39,346.60
  4. Step 4: Simplify right side
    71,182.03x = 3,864,874,476.77
  5. Step 5: Solve for x
    x = 3,864,874,476.77/71,182.03
  6. Step 6: Final answer
    x = 54,295.65

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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.