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Finding the Fourth Proportional to 64,948.88, 89,627.64 and 36,657.20

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Solution

The fourth proportional to 64,948.88, 89,627.64 and 36,657.20 is: 50,585.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,948.88 : 89,627.64 = 36,657.20 : x
  2. Step 2: Convert to fraction form
    64,948.88/89,627.64 = 36,657.20/x
  3. Step 3: Cross multiply
    64,948.88x = 89,627.64 × 36,657.20
  4. Step 4: Simplify right side
    64,948.88x = 3,285,498,325.01
  5. Step 5: Solve for x
    x = 3,285,498,325.01/64,948.88
  6. Step 6: Final answer
    x = 50,585.91

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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.