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Finding the Fourth Proportional to 59,677.80, 89,511.66 and 28,080.42

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Solution

The fourth proportional to 59,677.80, 89,511.66 and 28,080.42 is: 42,118.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,677.80 : 89,511.66 = 28,080.42 : x
  2. Step 2: Convert to fraction form
    59,677.80/89,511.66 = 28,080.42/x
  3. Step 3: Cross multiply
    59,677.80x = 89,511.66 × 28,080.42
  4. Step 4: Simplify right side
    59,677.80x = 2,513,525,007.70
  5. Step 5: Solve for x
    x = 2,513,525,007.70/59,677.80
  6. Step 6: Final answer
    x = 42,118.26

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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.