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Finding the Fourth Proportional to 13,833.76, 20,750.62 and 4,599.76

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Solution

The fourth proportional to 13,833.76, 20,750.62 and 4,599.76 is: 6,899.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,833.76 : 20,750.62 = 4,599.76 : x
  2. Step 2: Convert to fraction form
    13,833.76/20,750.62 = 4,599.76/x
  3. Step 3: Cross multiply
    13,833.76x = 20,750.62 × 4,599.76
  4. Step 4: Simplify right side
    13,833.76x = 95,447,871.85
  5. Step 5: Solve for x
    x = 95,447,871.85/13,833.76
  6. Step 6: Final answer
    x = 6,899.63

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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.