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Finding the Fourth Proportional to 71,252.46, 98,324.48 and 39,419.46

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Solution

The fourth proportional to 71,252.46, 98,324.48 and 39,419.46 is: 54,396.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,252.46 : 98,324.48 = 39,419.46 : x
  2. Step 2: Convert to fraction form
    71,252.46/98,324.48 = 39,419.46/x
  3. Step 3: Cross multiply
    71,252.46x = 98,324.48 × 39,419.46
  4. Step 4: Simplify right side
    71,252.46x = 3,875,898,004.93
  5. Step 5: Solve for x
    x = 3,875,898,004.93/71,252.46
  6. Step 6: Final answer
    x = 54,396.69

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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.