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Finding the Fourth Proportional to 10,886.84, 16,330.68 and 3,867.62

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Solution

The fourth proportional to 10,886.84, 16,330.68 and 3,867.62 is: 5,801.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,886.84 : 16,330.68 = 3,867.62 : x
  2. Step 2: Convert to fraction form
    10,886.84/16,330.68 = 3,867.62/x
  3. Step 3: Cross multiply
    10,886.84x = 16,330.68 × 3,867.62
  4. Step 4: Simplify right side
    10,886.84x = 63,160,864.58
  5. Step 5: Solve for x
    x = 63,160,864.58/10,886.84
  6. Step 6: Final answer
    x = 5,801.58

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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.