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Finding the Fourth Proportional to 70,719.83, 97,592.27 and 38,888.65

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Solution

The fourth proportional to 70,719.83, 97,592.27 and 38,888.65 is: 53,665.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,719.83 : 97,592.27 = 38,888.65 : x
  2. Step 2: Convert to fraction form
    70,719.83/97,592.27 = 38,888.65/x
  3. Step 3: Cross multiply
    70,719.83x = 97,592.27 × 38,888.65
  4. Step 4: Simplify right side
    70,719.83x = 3,795,231,192.31
  5. Step 5: Solve for x
    x = 3,795,231,192.31/70,719.83
  6. Step 6: Final answer
    x = 53,665.73

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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.