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Finding the Fourth Proportional to 58,456.98, 87,693.23 and 19,000.80

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Solution

The fourth proportional to 58,456.98, 87,693.23 and 19,000.80 is: 28,503.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,456.98 : 87,693.23 = 19,000.80 : x
  2. Step 2: Convert to fraction form
    58,456.98/87,693.23 = 19,000.80/x
  3. Step 3: Cross multiply
    58,456.98x = 87,693.23 × 19,000.80
  4. Step 4: Simplify right side
    58,456.98x = 1,666,241,524.58
  5. Step 5: Solve for x
    x = 1,666,241,524.58/58,456.98
  6. Step 6: Final answer
    x = 28,503.72

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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.