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Finding the Fourth Proportional to 63,483.20, 87,612 and 35,197.28

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Solution

The fourth proportional to 63,483.20, 87,612 and 35,197.28 is: 48,575.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,483.20 : 87,612 = 35,197.28 : x
  2. Step 2: Convert to fraction form
    63,483.20/87,612 = 35,197.28/x
  3. Step 3: Cross multiply
    63,483.20x = 87,612 × 35,197.28
  4. Step 4: Simplify right side
    63,483.20x = 3,083,704,095.36
  5. Step 5: Solve for x
    x = 3,083,704,095.36/63,483.20
  6. Step 6: Final answer
    x = 48,575.12

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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.