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Finding the Fourth Proportional to 15,050.91, 20,768.20 and 8,334.88

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Solution

The fourth proportional to 15,050.91, 20,768.20 and 8,334.88 is: 11,501.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,050.91 : 20,768.20 = 8,334.88 : x
  2. Step 2: Convert to fraction form
    15,050.91/20,768.20 = 8,334.88/x
  3. Step 3: Cross multiply
    15,050.91x = 20,768.20 × 8,334.88
  4. Step 4: Simplify right side
    15,050.91x = 173,100,454.82
  5. Step 5: Solve for x
    x = 173,100,454.82/15,050.91
  6. Step 6: Final answer
    x = 11,501.00

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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.