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Finding the Fourth Proportional to 10,626.80, 15,938.98 and 2,836.22

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Solution

The fourth proportional to 10,626.80, 15,938.98 and 2,836.22 is: 4,254.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,626.80 : 15,938.98 = 2,836.22 : x
  2. Step 2: Convert to fraction form
    10,626.80/15,938.98 = 2,836.22/x
  3. Step 3: Cross multiply
    10,626.80x = 15,938.98 × 2,836.22
  4. Step 4: Simplify right side
    10,626.80x = 45,206,367.07
  5. Step 5: Solve for x
    x = 45,206,367.07/10,626.80
  6. Step 6: Final answer
    x = 4,254.00

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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.