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Finding the Fourth Proportional to 49,587.84, 68,430.84 and 28,367.46

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Solution

The fourth proportional to 49,587.84, 68,430.84 and 28,367.46 is: 39,146.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,587.84 : 68,430.84 = 28,367.46 : x
  2. Step 2: Convert to fraction form
    49,587.84/68,430.84 = 28,367.46/x
  3. Step 3: Cross multiply
    49,587.84x = 68,430.84 × 28,367.46
  4. Step 4: Simplify right side
    49,587.84x = 1,941,209,116.47
  5. Step 5: Solve for x
    x = 1,941,209,116.47/49,587.84
  6. Step 6: Final answer
    x = 39,146.88

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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.