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Finding the Fourth Proportional to 46,678.79, 69,955.65 and 43,689.44

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Solution

The fourth proportional to 46,678.79, 69,955.65 and 43,689.44 is: 65,475.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,678.79 : 69,955.65 = 43,689.44 : x
  2. Step 2: Convert to fraction form
    46,678.79/69,955.65 = 43,689.44/x
  3. Step 3: Cross multiply
    46,678.79x = 69,955.65 × 43,689.44
  4. Step 4: Simplify right side
    46,678.79x = 3,056,322,823.56
  5. Step 5: Solve for x
    x = 3,056,322,823.56/46,678.79
  6. Step 6: Final answer
    x = 65,475.63

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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.