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Finding the Fourth Proportional to 28,043.94, 42,066.06 and 8,322.70

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Solution

The fourth proportional to 28,043.94, 42,066.06 and 8,322.70 is: 12,484.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043.94 : 42,066.06 = 8,322.70 : x
  2. Step 2: Convert to fraction form
    28,043.94/42,066.06 = 8,322.70/x
  3. Step 3: Cross multiply
    28,043.94x = 42,066.06 × 8,322.70
  4. Step 4: Simplify right side
    28,043.94x = 350,103,197.56
  5. Step 5: Solve for x
    x = 350,103,197.56/28,043.94
  6. Step 6: Final answer
    x = 12,484.09

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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.