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Finding the Fourth Proportional to 25,768.80, 35,560.80 and 14,590.80

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Solution

The fourth proportional to 25,768.80, 35,560.80 and 14,590.80 is: 20,135.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,768.80 : 35,560.80 = 14,590.80 : x
  2. Step 2: Convert to fraction form
    25,768.80/35,560.80 = 14,590.80/x
  3. Step 3: Cross multiply
    25,768.80x = 35,560.80 × 14,590.80
  4. Step 4: Simplify right side
    25,768.80x = 518,860,520.64
  5. Step 5: Solve for x
    x = 518,860,520.64/25,768.80
  6. Step 6: Final answer
    x = 20,135.22

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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.