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Finding the Fourth Proportional to 18,428.80, 27,649.04 and 6,582.30

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Solution

The fourth proportional to 18,428.80, 27,649.04 and 6,582.30 is: 9,875.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.80 : 27,649.04 = 6,582.30 : x
  2. Step 2: Convert to fraction form
    18,428.80/27,649.04 = 6,582.30/x
  3. Step 3: Cross multiply
    18,428.80x = 27,649.04 × 6,582.30
  4. Step 4: Simplify right side
    18,428.80x = 181,994,275.99
  5. Step 5: Solve for x
    x = 181,994,275.99/18,428.80
  6. Step 6: Final answer
    x = 9,875.54

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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.