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Finding the Fourth Proportional to 12,602.91, 18,891.19 and 4,701.99

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Solution

The fourth proportional to 12,602.91, 18,891.19 and 4,701.99 is: 7,048.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,602.91 : 18,891.19 = 4,701.99 : x
  2. Step 2: Convert to fraction form
    12,602.91/18,891.19 = 4,701.99/x
  3. Step 3: Cross multiply
    12,602.91x = 18,891.19 × 4,701.99
  4. Step 4: Simplify right side
    12,602.91x = 88,826,186.47
  5. Step 5: Solve for x
    x = 88,826,186.47/12,602.91
  6. Step 6: Final answer
    x = 7,048.07

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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.