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Finding the Fourth Proportional to 3,573.12, 4,929.84 and 2,174.88

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Solution

The fourth proportional to 3,573.12, 4,929.84 and 2,174.88 is: 3,000.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,573.12 : 4,929.84 = 2,174.88 : x
  2. Step 2: Convert to fraction form
    3,573.12/4,929.84 = 2,174.88/x
  3. Step 3: Cross multiply
    3,573.12x = 4,929.84 × 2,174.88
  4. Step 4: Simplify right side
    3,573.12x = 10,721,810.42
  5. Step 5: Solve for x
    x = 10,721,810.42/3,573.12
  6. Step 6: Final answer
    x = 3,000.69

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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.