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Finding the Fourth Proportional to 43,649.88, 65,482.71 and 28,871.02

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Solution

The fourth proportional to 43,649.88, 65,482.71 and 28,871.02 is: 43,311.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,649.88 : 65,482.71 = 28,871.02 : x
  2. Step 2: Convert to fraction form
    43,649.88/65,482.71 = 28,871.02/x
  3. Step 3: Cross multiply
    43,649.88x = 65,482.71 × 28,871.02
  4. Step 4: Simplify right side
    43,649.88x = 1,890,552,630.06
  5. Step 5: Solve for x
    x = 1,890,552,630.06/43,649.88
  6. Step 6: Final answer
    x = 43,311.75

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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.