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Finding the Fourth Proportional to 1,567.66, 2,351.75 and 527.76

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Solution

The fourth proportional to 1,567.66, 2,351.75 and 527.76 is: 791.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.66 : 2,351.75 = 527.76 : x
  2. Step 2: Convert to fraction form
    1,567.66/2,351.75 = 527.76/x
  3. Step 3: Cross multiply
    1,567.66x = 2,351.75 × 527.76
  4. Step 4: Simplify right side
    1,567.66x = 1,241,147.82
  5. Step 5: Solve for x
    x = 1,241,147.82/1,567.66
  6. Step 6: Final answer
    x = 791.72

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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.