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Finding the Fourth Proportional to 64,295.81, 88,729.64 and 36,699.91

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Solution

The fourth proportional to 64,295.81, 88,729.64 and 36,699.91 is: 50,646.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,295.81 : 88,729.64 = 36,699.91 : x
  2. Step 2: Convert to fraction form
    64,295.81/88,729.64 = 36,699.91/x
  3. Step 3: Cross multiply
    64,295.81x = 88,729.64 × 36,699.91
  4. Step 4: Simplify right side
    64,295.81x = 3,256,369,175.18
  5. Step 5: Solve for x
    x = 3,256,369,175.18/64,295.81
  6. Step 6: Final answer
    x = 50,646.68

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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.