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Finding the Fourth Proportional to 28,232.94, 42,292.94 and 16,982.07

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Solution

The fourth proportional to 28,232.94, 42,292.94 and 16,982.07 is: 25,439.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,232.94 : 42,292.94 = 16,982.07 : x
  2. Step 2: Convert to fraction form
    28,232.94/42,292.94 = 16,982.07/x
  3. Step 3: Cross multiply
    28,232.94x = 42,292.94 × 16,982.07
  4. Step 4: Simplify right side
    28,232.94x = 718,221,498.58
  5. Step 5: Solve for x
    x = 718,221,498.58/28,232.94
  6. Step 6: Final answer
    x = 25,439.13

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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.