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Finding the Fourth Proportional to 83,794.48, 115,638.64 and 45,556.64

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Solution

The fourth proportional to 83,794.48, 115,638.64 and 45,556.64 is: 62,869.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,794.48 : 115,638.64 = 45,556.64 : x
  2. Step 2: Convert to fraction form
    83,794.48/115,638.64 = 45,556.64/x
  3. Step 3: Cross multiply
    83,794.48x = 115,638.64 × 45,556.64
  4. Step 4: Simplify right side
    83,794.48x = 5,268,107,892.57
  5. Step 5: Solve for x
    x = 5,268,107,892.57/83,794.48
  6. Step 6: Final answer
    x = 62,869.39

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1.5x scale

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.