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Finding the Fourth Proportional to 58,973.66, 88,418.78 and 18,980.26

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Solution

The fourth proportional to 58,973.66, 88,418.78 and 18,980.26 is: 28,456.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,973.66 : 88,418.78 = 18,980.26 : x
  2. Step 2: Convert to fraction form
    58,973.66/88,418.78 = 18,980.26/x
  3. Step 3: Cross multiply
    58,973.66x = 88,418.78 × 18,980.26
  4. Step 4: Simplify right side
    58,973.66x = 1,678,211,433.28
  5. Step 5: Solve for x
    x = 1,678,211,433.28/58,973.66
  6. Step 6: Final answer
    x = 28,456.97

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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.