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Finding the Fourth Proportional to 15,048.34, 20,765.82 and 8,333.59

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Solution

The fourth proportional to 15,048.34, 20,765.82 and 8,333.59 is: 11,499.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,048.34 : 20,765.82 = 8,333.59 : x
  2. Step 2: Convert to fraction form
    15,048.34/20,765.82 = 8,333.59/x
  3. Step 3: Cross multiply
    15,048.34x = 20,765.82 × 8,333.59
  4. Step 4: Simplify right side
    15,048.34x = 173,053,829.89
  5. Step 5: Solve for x
    x = 173,053,829.89/15,048.34
  6. Step 6: Final answer
    x = 11,499.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.