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Finding the Fourth Proportional to 58,606.56, 87,920.64 and 19,165.86

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Solution

The fourth proportional to 58,606.56, 87,920.64 and 19,165.86 is: 28,752.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,606.56 : 87,920.64 = 19,165.86 : x
  2. Step 2: Convert to fraction form
    58,606.56/87,920.64 = 19,165.86/x
  3. Step 3: Cross multiply
    58,606.56x = 87,920.64 × 19,165.86
  4. Step 4: Simplify right side
    58,606.56x = 1,685,074,677.35
  5. Step 5: Solve for x
    x = 1,685,074,677.35/58,606.56
  6. Step 6: Final answer
    x = 28,752.32

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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.