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Finding the Fourth Proportional to 49,465.52, 68,264.16 and 28,244.40

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Solution

The fourth proportional to 49,465.52, 68,264.16 and 28,244.40 is: 38,978.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,465.52 : 68,264.16 = 28,244.40 : x
  2. Step 2: Convert to fraction form
    49,465.52/68,264.16 = 28,244.40/x
  3. Step 3: Cross multiply
    49,465.52x = 68,264.16 × 28,244.40
  4. Step 4: Simplify right side
    49,465.52x = 1,928,080,240.70
  5. Step 5: Solve for x
    x = 1,928,080,240.70/49,465.52
  6. Step 6: Final answer
    x = 38,978.27

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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.