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Finding the Fourth Proportional to 28,351.94, 42,513.94 and 9,625.14

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Solution

The fourth proportional to 28,351.94, 42,513.94 and 9,625.14 is: 14,432.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,351.94 : 42,513.94 = 9,625.14 : x
  2. Step 2: Convert to fraction form
    28,351.94/42,513.94 = 9,625.14/x
  3. Step 3: Cross multiply
    28,351.94x = 42,513.94 × 9,625.14
  4. Step 4: Simplify right side
    28,351.94x = 409,202,624.45
  5. Step 5: Solve for x
    x = 409,202,624.45/28,351.94
  6. Step 6: Final answer
    x = 14,432.97

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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.