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Finding the Fourth Proportional to 83,647.62, 115,433.91 and 45,924.30

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Solution

The fourth proportional to 83,647.62, 115,433.91 and 45,924.30 is: 63,375.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,647.62 : 115,433.91 = 45,924.30 : x
  2. Step 2: Convert to fraction form
    83,647.62/115,433.91 = 45,924.30/x
  3. Step 3: Cross multiply
    83,647.62x = 115,433.91 × 45,924.30
  4. Step 4: Simplify right side
    83,647.62x = 5,301,221,513.01
  5. Step 5: Solve for x
    x = 5,301,221,513.01/83,647.62
  6. Step 6: Final answer
    x = 63,375.64

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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.