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Finding the Fourth Proportional to 68,360, 94,336.80 and 38,552

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Solution

The fourth proportional to 68,360, 94,336.80 and 38,552 is: 53,201.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,360 : 94,336.80 = 38,552 : x
  2. Step 2: Convert to fraction form
    68,360/94,336.80 = 38,552/x
  3. Step 3: Cross multiply
    68,360x = 94,336.80 × 38,552
  4. Step 4: Simplify right side
    68,360x = 3,636,872,313.60
  5. Step 5: Solve for x
    x = 3,636,872,313.60/68,360
  6. Step 6: Final answer
    x = 53,201.76

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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.