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Finding the Fourth Proportional to 29,671.80, 44,421.30 and 28,807.80

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Solution

The fourth proportional to 29,671.80, 44,421.30 and 28,807.80 is: 43,127.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,671.80 : 44,421.30 = 28,807.80 : x
  2. Step 2: Convert to fraction form
    29,671.80/44,421.30 = 28,807.80/x
  3. Step 3: Cross multiply
    29,671.80x = 44,421.30 × 28,807.80
  4. Step 4: Simplify right side
    29,671.80x = 1,279,679,926.14
  5. Step 5: Solve for x
    x = 1,279,679,926.14/29,671.80
  6. Step 6: Final answer
    x = 43,127.82

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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.