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Finding the Fourth Proportional to 64,455.22, 88,949.16 and 35,776.74

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Solution

The fourth proportional to 64,455.22, 88,949.16 and 35,776.74 is: 49,372.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,455.22 : 88,949.16 = 35,776.74 : x
  2. Step 2: Convert to fraction form
    64,455.22/88,949.16 = 35,776.74/x
  3. Step 3: Cross multiply
    64,455.22x = 88,949.16 × 35,776.74
  4. Step 4: Simplify right side
    64,455.22x = 3,182,310,970.54
  5. Step 5: Solve for x
    x = 3,182,310,970.54/64,455.22
  6. Step 6: Final answer
    x = 49,372.43

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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.