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Finding the Fourth Proportional to 1,663.81, 2,495.10 and 567.88

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Solution

The fourth proportional to 1,663.81, 2,495.10 and 567.88 is: 851.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663.81 : 2,495.10 = 567.88 : x
  2. Step 2: Convert to fraction form
    1,663.81/2,495.10 = 567.88/x
  3. Step 3: Cross multiply
    1,663.81x = 2,495.10 × 567.88
  4. Step 4: Simplify right side
    1,663.81x = 1,416,904.91
  5. Step 5: Solve for x
    x = 1,416,904.91/1,663.81
  6. Step 6: Final answer
    x = 851.61

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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.