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Finding the Fourth Proportional to 53,207.78, 79,800.46 and 15,768.18

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Solution

The fourth proportional to 53,207.78, 79,800.46 and 15,768.18 is: 23,648.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,207.78 : 79,800.46 = 15,768.18 : x
  2. Step 2: Convert to fraction form
    53,207.78/79,800.46 = 15,768.18/x
  3. Step 3: Cross multiply
    53,207.78x = 79,800.46 × 15,768.18
  4. Step 4: Simplify right side
    53,207.78x = 1,258,308,017.36
  5. Step 5: Solve for x
    x = 1,258,308,017.36/53,207.78
  6. Step 6: Final answer
    x = 23,648.95

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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.