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Finding the Fourth Proportional to 43,447.81, 65,061.42 and 36,409.32

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Solution

The fourth proportional to 43,447.81, 65,061.42 and 36,409.32 is: 54,521.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,447.81 : 65,061.42 = 36,409.32 : x
  2. Step 2: Convert to fraction form
    43,447.81/65,061.42 = 36,409.32/x
  3. Step 3: Cross multiply
    43,447.81x = 65,061.42 × 36,409.32
  4. Step 4: Simplify right side
    43,447.81x = 2,368,842,060.43
  5. Step 5: Solve for x
    x = 2,368,842,060.43/43,447.81
  6. Step 6: Final answer
    x = 54,521.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.