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Finding the Fourth Proportional to 70,703.99, 97,569.02 and 38,872.65

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Solution

The fourth proportional to 70,703.99, 97,569.02 and 38,872.65 is: 53,642.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,703.99 : 97,569.02 = 38,872.65 : x
  2. Step 2: Convert to fraction form
    70,703.99/97,569.02 = 38,872.65/x
  3. Step 3: Cross multiply
    70,703.99x = 97,569.02 × 38,872.65
  4. Step 4: Simplify right side
    70,703.99x = 3,792,765,805.06
  5. Step 5: Solve for x
    x = 3,792,765,805.06/70,703.99
  6. Step 6: Final answer
    x = 53,642.88

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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.