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Finding the Fourth Proportional to 65,808.35, 90,815.17 and 35,593.64

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Solution

The fourth proportional to 65,808.35, 90,815.17 and 35,593.64 is: 49,119.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,808.35 : 90,815.17 = 35,593.64 : x
  2. Step 2: Convert to fraction form
    65,808.35/90,815.17 = 35,593.64/x
  3. Step 3: Cross multiply
    65,808.35x = 90,815.17 × 35,593.64
  4. Step 4: Simplify right side
    65,808.35x = 3,232,442,467.52
  5. Step 5: Solve for x
    x = 3,232,442,467.52/65,808.35
  6. Step 6: Final answer
    x = 49,119.03

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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.