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Finding the Fourth Proportional to 52,167.91, 71,980.63 and 30,954.07

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Solution

The fourth proportional to 52,167.91, 71,980.63 and 30,954.07 is: 42,710.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,167.91 : 71,980.63 = 30,954.07 : x
  2. Step 2: Convert to fraction form
    52,167.91/71,980.63 = 30,954.07/x
  3. Step 3: Cross multiply
    52,167.91x = 71,980.63 × 30,954.07
  4. Step 4: Simplify right side
    52,167.91x = 2,228,093,459.66
  5. Step 5: Solve for x
    x = 2,228,093,459.66/52,167.91
  6. Step 6: Final answer
    x = 42,710.04

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1.5x scale

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.