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Finding the Fourth Proportional to 71,630.82, 98,842.95 and 41,411.34

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Solution

The fourth proportional to 71,630.82, 98,842.95 and 41,411.34 is: 57,143.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,630.82 : 98,842.95 = 41,411.34 : x
  2. Step 2: Convert to fraction form
    71,630.82/98,842.95 = 41,411.34/x
  3. Step 3: Cross multiply
    71,630.82x = 98,842.95 × 41,411.34
  4. Step 4: Simplify right side
    71,630.82x = 4,093,219,009.05
  5. Step 5: Solve for x
    x = 4,093,219,009.05/71,630.82
  6. Step 6: Final answer
    x = 57,143.27

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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.