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Finding the Fourth Proportional to 52,520.94, 78,781.41 and 17,460.90

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Solution

The fourth proportional to 52,520.94, 78,781.41 and 17,460.90 is: 26,191.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,520.94 : 78,781.41 = 17,460.90 : x
  2. Step 2: Convert to fraction form
    52,520.94/78,781.41 = 17,460.90/x
  3. Step 3: Cross multiply
    52,520.94x = 78,781.41 × 17,460.90
  4. Step 4: Simplify right side
    52,520.94x = 1,375,594,321.87
  5. Step 5: Solve for x
    x = 1,375,594,321.87/52,520.94
  6. Step 6: Final answer
    x = 26,191.35

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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.