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Finding the Fourth Proportional to 58,472.35, 87,722.36 and 19,029.46

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Solution

The fourth proportional to 58,472.35, 87,722.36 and 19,029.46 is: 28,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,472.35 : 87,722.36 = 19,029.46 : x
  2. Step 2: Convert to fraction form
    58,472.35/87,722.36 = 19,029.46/x
  3. Step 3: Cross multiply
    58,472.35x = 87,722.36 × 19,029.46
  4. Step 4: Simplify right side
    58,472.35x = 1,669,309,470.86
  5. Step 5: Solve for x
    x = 1,669,309,470.86/58,472.35
  6. Step 6: Final answer
    x = 28,548.70

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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.