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Finding the Fourth Proportional to 65,594.48, 90,517.77 and 38,745.61

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Solution

The fourth proportional to 65,594.48, 90,517.77 and 38,745.61 is: 53,467.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,594.48 : 90,517.77 = 38,745.61 : x
  2. Step 2: Convert to fraction form
    65,594.48/90,517.77 = 38,745.61/x
  3. Step 3: Cross multiply
    65,594.48x = 90,517.77 × 38,745.61
  4. Step 4: Simplify right side
    65,594.48x = 3,507,165,988.20
  5. Step 5: Solve for x
    x = 3,507,165,988.20/65,594.48
  6. Step 6: Final answer
    x = 53,467.40

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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.