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Finding the Fourth Proportional to 36,969.68, 51,017.32 and 20,836.88

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Solution

The fourth proportional to 36,969.68, 51,017.32 and 20,836.88 is: 28,754.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,969.68 : 51,017.32 = 20,836.88 : x
  2. Step 2: Convert to fraction form
    36,969.68/51,017.32 = 20,836.88/x
  3. Step 3: Cross multiply
    36,969.68x = 51,017.32 × 20,836.88
  4. Step 4: Simplify right side
    36,969.68x = 1,063,041,774.76
  5. Step 5: Solve for x
    x = 1,063,041,774.76/36,969.68
  6. Step 6: Final answer
    x = 28,754.42

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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.