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Finding the Fourth Proportional to 22,510.76, 33,770.99 and 12,655.76

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Solution

The fourth proportional to 22,510.76, 33,770.99 and 12,655.76 is: 18,986.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,510.76 : 33,770.99 = 12,655.76 : x
  2. Step 2: Convert to fraction form
    22,510.76/33,770.99 = 12,655.76/x
  3. Step 3: Cross multiply
    22,510.76x = 33,770.99 × 12,655.76
  4. Step 4: Simplify right side
    22,510.76x = 427,397,407.19
  5. Step 5: Solve for x
    x = 427,397,407.19/22,510.76
  6. Step 6: Final answer
    x = 18,986.36

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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.