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Finding the Fourth Proportional to 22,478.76, 33,701.50 and 10,780.84

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Solution

The fourth proportional to 22,478.76, 33,701.50 and 10,780.84 is: 16,163.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,478.76 : 33,701.50 = 10,780.84 : x
  2. Step 2: Convert to fraction form
    22,478.76/33,701.50 = 10,780.84/x
  3. Step 3: Cross multiply
    22,478.76x = 33,701.50 × 10,780.84
  4. Step 4: Simplify right side
    22,478.76x = 363,330,479.26
  5. Step 5: Solve for x
    x = 363,330,479.26/22,478.76
  6. Step 6: Final answer
    x = 16,163.28

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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.