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Finding the Fourth Proportional to 8,581.61, 12,875.02 and 3,586.41

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Solution

The fourth proportional to 8,581.61, 12,875.02 and 3,586.41 is: 5,380.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.61 : 12,875.02 = 3,586.41 : x
  2. Step 2: Convert to fraction form
    8,581.61/12,875.02 = 3,586.41/x
  3. Step 3: Cross multiply
    8,581.61x = 12,875.02 × 3,586.41
  4. Step 4: Simplify right side
    8,581.61x = 46,175,091.51
  5. Step 5: Solve for x
    x = 46,175,091.51/8,581.61
  6. Step 6: Final answer
    x = 5,380.70

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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.