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Finding the Fourth Proportional to 70,881.65, 97,816.92 and 39,050.47

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Solution

The fourth proportional to 70,881.65, 97,816.92 and 39,050.47 is: 53,889.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,881.65 : 97,816.92 = 39,050.47 : x
  2. Step 2: Convert to fraction form
    70,881.65/97,816.92 = 39,050.47/x
  3. Step 3: Cross multiply
    70,881.65x = 97,816.92 × 39,050.47
  4. Step 4: Simplify right side
    70,881.65x = 3,819,796,675.78
  5. Step 5: Solve for x
    x = 3,819,796,675.78/70,881.65
  6. Step 6: Final answer
    x = 53,889.78

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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.