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Finding the Fourth Proportional to 28,689.40, 43,034.10 and 25,233.40

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Solution

The fourth proportional to 28,689.40, 43,034.10 and 25,233.40 is: 37,850.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,689.40 : 43,034.10 = 25,233.40 : x
  2. Step 2: Convert to fraction form
    28,689.40/43,034.10 = 25,233.40/x
  3. Step 3: Cross multiply
    28,689.40x = 43,034.10 × 25,233.40
  4. Step 4: Simplify right side
    28,689.40x = 1,085,896,658.94
  5. Step 5: Solve for x
    x = 1,085,896,658.94/28,689.40
  6. Step 6: Final answer
    x = 37,850.10

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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.