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Finding the Fourth Proportional to 58,865.98, 88,290.65 and 18,879.77

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Solution

The fourth proportional to 58,865.98, 88,290.65 and 18,879.77 is: 28,316.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,865.98 : 88,290.65 = 18,879.77 : x
  2. Step 2: Convert to fraction form
    58,865.98/88,290.65 = 18,879.77/x
  3. Step 3: Cross multiply
    58,865.98x = 88,290.65 × 18,879.77
  4. Step 4: Simplify right side
    58,865.98x = 1,666,906,629.30
  5. Step 5: Solve for x
    x = 1,666,906,629.30/58,865.98
  6. Step 6: Final answer
    x = 28,316.98

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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.