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Finding the Fourth Proportional to 2,693.34, 4,031.70 and 1,505.70

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Solution

The fourth proportional to 2,693.34, 4,031.70 and 1,505.70 is: 2,253.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,693.34 : 4,031.70 = 1,505.70 : x
  2. Step 2: Convert to fraction form
    2,693.34/4,031.70 = 1,505.70/x
  3. Step 3: Cross multiply
    2,693.34x = 4,031.70 × 1,505.70
  4. Step 4: Simplify right side
    2,693.34x = 6,070,530.69
  5. Step 5: Solve for x
    x = 6,070,530.69/2,693.34
  6. Step 6: Final answer
    x = 2,253.90

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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.