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Finding the Fourth Proportional to 8,584.89, 12,877.34 and 4,687.17

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Solution

The fourth proportional to 8,584.89, 12,877.34 and 4,687.17 is: 7,030.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,584.89 : 12,877.34 = 4,687.17 : x
  2. Step 2: Convert to fraction form
    8,584.89/12,877.34 = 4,687.17/x
  3. Step 3: Cross multiply
    8,584.89x = 12,877.34 × 4,687.17
  4. Step 4: Simplify right side
    8,584.89x = 60,358,258.29
  5. Step 5: Solve for x
    x = 60,358,258.29/8,584.89
  6. Step 6: Final answer
    x = 7,030.76

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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.