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Finding the Fourth Proportional to 58,358.20, 87,537.30 and 16,809.40

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Solution

The fourth proportional to 58,358.20, 87,537.30 and 16,809.40 is: 25,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,358.20 : 87,537.30 = 16,809.40 : x
  2. Step 2: Convert to fraction form
    58,358.20/87,537.30 = 16,809.40/x
  3. Step 3: Cross multiply
    58,358.20x = 87,537.30 × 16,809.40
  4. Step 4: Simplify right side
    58,358.20x = 1,471,449,490.62
  5. Step 5: Solve for x
    x = 1,471,449,490.62/58,358.20
  6. Step 6: Final answer
    x = 25,214.10

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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.