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Finding the Fourth Proportional to 5,714.98, 7,888.20 and 3,358.69

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Solution

The fourth proportional to 5,714.98, 7,888.20 and 3,358.69 is: 4,635.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,714.98 : 7,888.20 = 3,358.69 : x
  2. Step 2: Convert to fraction form
    5,714.98/7,888.20 = 3,358.69/x
  3. Step 3: Cross multiply
    5,714.98x = 7,888.20 × 3,358.69
  4. Step 4: Simplify right side
    5,714.98x = 26,494,018.46
  5. Step 5: Solve for x
    x = 26,494,018.46/5,714.98
  6. Step 6: Final answer
    x = 4,635.89

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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.