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Finding the Fourth Proportional to 19,392.96, 29,096.76 and 7,714.44

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Solution

The fourth proportional to 19,392.96, 29,096.76 and 7,714.44 is: 11,574.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,392.96 : 29,096.76 = 7,714.44 : x
  2. Step 2: Convert to fraction form
    19,392.96/29,096.76 = 7,714.44/x
  3. Step 3: Cross multiply
    19,392.96x = 29,096.76 × 7,714.44
  4. Step 4: Simplify right side
    19,392.96x = 224,465,209.21
  5. Step 5: Solve for x
    x = 224,465,209.21/19,392.96
  6. Step 6: Final answer
    x = 11,574.57

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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.