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Finding the Fourth Proportional to 64,304.10, 88,739.55 and 36,009.81

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Solution

The fourth proportional to 64,304.10, 88,739.55 and 36,009.81 is: 49,693.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,304.10 : 88,739.55 = 36,009.81 : x
  2. Step 2: Convert to fraction form
    64,304.10/88,739.55 = 36,009.81/x
  3. Step 3: Cross multiply
    64,304.10x = 88,739.55 × 36,009.81
  4. Step 4: Simplify right side
    64,304.10x = 3,195,494,334.99
  5. Step 5: Solve for x
    x = 3,195,494,334.99/64,304.10
  6. Step 6: Final answer
    x = 49,693.48

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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.