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Finding the Fourth Proportional to 43,666.16, 65,451.84 and 28,666.98

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Solution

The fourth proportional to 43,666.16, 65,451.84 and 28,666.98 is: 42,969.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,666.16 : 65,451.84 = 28,666.98 : x
  2. Step 2: Convert to fraction form
    43,666.16/65,451.84 = 28,666.98/x
  3. Step 3: Cross multiply
    43,666.16x = 65,451.84 × 28,666.98
  4. Step 4: Simplify right side
    43,666.16x = 1,876,306,588.24
  5. Step 5: Solve for x
    x = 1,876,306,588.24/43,666.16
  6. Step 6: Final answer
    x = 42,969.36

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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.