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Finding the Fourth Proportional to 58,474.89, 87,738.26 and 21,530.25

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Solution

The fourth proportional to 58,474.89, 87,738.26 and 21,530.25 is: 32,304.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,474.89 : 87,738.26 = 21,530.25 : x
  2. Step 2: Convert to fraction form
    58,474.89/87,738.26 = 21,530.25/x
  3. Step 3: Cross multiply
    58,474.89x = 87,738.26 × 21,530.25
  4. Step 4: Simplify right side
    58,474.89x = 1,889,026,564.71
  5. Step 5: Solve for x
    x = 1,889,026,564.71/58,474.89
  6. Step 6: Final answer
    x = 32,304.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.