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Finding the Fourth Proportional to 63,105.64, 87,083.20 and 34,811.32

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Solution

The fourth proportional to 63,105.64, 87,083.20 and 34,811.32 is: 48,038.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,105.64 : 87,083.20 = 34,811.32 : x
  2. Step 2: Convert to fraction form
    63,105.64/87,083.20 = 34,811.32/x
  3. Step 3: Cross multiply
    63,105.64x = 87,083.20 × 34,811.32
  4. Step 4: Simplify right side
    63,105.64x = 3,031,481,141.82
  5. Step 5: Solve for x
    x = 3,031,481,141.82/63,105.64
  6. Step 6: Final answer
    x = 48,038.20

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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.