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Finding the Fourth Proportional to 4,389.84, 6,582.33 and 2,659.68

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Solution

The fourth proportional to 4,389.84, 6,582.33 and 2,659.68 is: 3,988.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,389.84 : 6,582.33 = 2,659.68 : x
  2. Step 2: Convert to fraction form
    4,389.84/6,582.33 = 2,659.68/x
  3. Step 3: Cross multiply
    4,389.84x = 6,582.33 × 2,659.68
  4. Step 4: Simplify right side
    4,389.84x = 17,506,891.45
  5. Step 5: Solve for x
    x = 17,506,891.45/4,389.84
  6. Step 6: Final answer
    x = 3,988.05

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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.