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Finding the Fourth Proportional to 71,576.65, 98,613.24 and 55,388.29

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Solution

The fourth proportional to 71,576.65, 98,613.24 and 55,388.29 is: 76,310.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,576.65 : 98,613.24 = 55,388.29 : x
  2. Step 2: Convert to fraction form
    71,576.65/98,613.24 = 55,388.29/x
  3. Step 3: Cross multiply
    71,576.65x = 98,613.24 × 55,388.29
  4. Step 4: Simplify right side
    71,576.65x = 5,462,018,734.96
  5. Step 5: Solve for x
    x = 5,462,018,734.96/71,576.65
  6. Step 6: Final answer
    x = 76,310.06

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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.