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Finding the Fourth Proportional to 63,508.64, 87,579.60 and 58,485.92

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Solution

The fourth proportional to 63,508.64, 87,579.60 and 58,485.92 is: 80,653.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,508.64 : 87,579.60 = 58,485.92 : x
  2. Step 2: Convert to fraction form
    63,508.64/87,579.60 = 58,485.92/x
  3. Step 3: Cross multiply
    63,508.64x = 87,579.60 × 58,485.92
  4. Step 4: Simplify right side
    63,508.64x = 5,122,173,479.23
  5. Step 5: Solve for x
    x = 5,122,173,479.23/63,508.64
  6. Step 6: Final answer
    x = 80,653.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.