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Finding the Fourth Proportional to 15,792.70, 23,676.90 and 8,867.20

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Solution

The fourth proportional to 15,792.70, 23,676.90 and 8,867.20 is: 13,293.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,792.70 : 23,676.90 = 8,867.20 : x
  2. Step 2: Convert to fraction form
    15,792.70/23,676.90 = 8,867.20/x
  3. Step 3: Cross multiply
    15,792.70x = 23,676.90 × 8,867.20
  4. Step 4: Simplify right side
    15,792.70x = 209,947,807.68
  5. Step 5: Solve for x
    x = 209,947,807.68/15,792.70
  6. Step 6: Final answer
    x = 13,293.98

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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.