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Finding the Fourth Proportional to 40,794.75, 61,200.90 and 12,714.21

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Solution

The fourth proportional to 40,794.75, 61,200.90 and 12,714.21 is: 19,074.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,794.75 : 61,200.90 = 12,714.21 : x
  2. Step 2: Convert to fraction form
    40,794.75/61,200.90 = 12,714.21/x
  3. Step 3: Cross multiply
    40,794.75x = 61,200.90 × 12,714.21
  4. Step 4: Simplify right side
    40,794.75x = 778,121,094.79
  5. Step 5: Solve for x
    x = 778,121,094.79/40,794.75
  6. Step 6: Final answer
    x = 19,074.05

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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.