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Finding the Fourth Proportional to 15,988.29, 23,989.34 and 8,584.10

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Solution

The fourth proportional to 15,988.29, 23,989.34 and 8,584.10 is: 12,879.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,988.29 : 23,989.34 = 8,584.10 : x
  2. Step 2: Convert to fraction form
    15,988.29/23,989.34 = 8,584.10/x
  3. Step 3: Cross multiply
    15,988.29x = 23,989.34 × 8,584.10
  4. Step 4: Simplify right side
    15,988.29x = 205,926,893.49
  5. Step 5: Solve for x
    x = 205,926,893.49/15,988.29
  6. Step 6: Final answer
    x = 12,879.86

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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.