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Finding the Fourth Proportional to 16,872.84, 25,309.08 and 6,486.84

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Solution

The fourth proportional to 16,872.84, 25,309.08 and 6,486.84 is: 9,730.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,872.84 : 25,309.08 = 6,486.84 : x
  2. Step 2: Convert to fraction form
    16,872.84/25,309.08 = 6,486.84/x
  3. Step 3: Cross multiply
    16,872.84x = 25,309.08 × 6,486.84
  4. Step 4: Simplify right side
    16,872.84x = 164,175,952.51
  5. Step 5: Solve for x
    x = 164,175,952.51/16,872.84
  6. Step 6: Final answer
    x = 9,730.19

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1.5x scale

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.