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Finding the Fourth Proportional to 68,695.80, 94,798.34 and 38,483.88

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Solution

The fourth proportional to 68,695.80, 94,798.34 and 38,483.88 is: 53,106.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,695.80 : 94,798.34 = 38,483.88 : x
  2. Step 2: Convert to fraction form
    68,695.80/94,798.34 = 38,483.88/x
  3. Step 3: Cross multiply
    68,695.80x = 94,798.34 × 38,483.88
  4. Step 4: Simplify right side
    68,695.80x = 3,648,207,940.76
  5. Step 5: Solve for x
    x = 3,648,207,940.76/68,695.80
  6. Step 6: Final answer
    x = 53,106.71

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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.