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Finding the Fourth Proportional to 71,113.98, 98,141.94 and 39,283.32

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Solution

The fourth proportional to 71,113.98, 98,141.94 and 39,283.32 is: 54,213.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,113.98 : 98,141.94 = 39,283.32 : x
  2. Step 2: Convert to fraction form
    71,113.98/98,141.94 = 39,283.32/x
  3. Step 3: Cross multiply
    71,113.98x = 98,141.94 × 39,283.32
  4. Step 4: Simplify right side
    71,113.98x = 3,855,341,234.44
  5. Step 5: Solve for x
    x = 3,855,341,234.44/71,113.98
  6. Step 6: Final answer
    x = 54,213.55

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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.