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Finding the Fourth Proportional to 60,682.25, 90,985.34 and 18,548.33

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Solution

The fourth proportional to 60,682.25, 90,985.34 and 18,548.33 is: 27,810.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,682.25 : 90,985.34 = 18,548.33 : x
  2. Step 2: Convert to fraction form
    60,682.25/90,985.34 = 18,548.33/x
  3. Step 3: Cross multiply
    60,682.25x = 90,985.34 × 18,548.33
  4. Step 4: Simplify right side
    60,682.25x = 1,687,625,702.93
  5. Step 5: Solve for x
    x = 1,687,625,702.93/60,682.25
  6. Step 6: Final answer
    x = 27,810.86

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1.5x scale

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.