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Finding the Fourth Proportional to 9,658.90, 14,488.42 and 3,417.56

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Solution

The fourth proportional to 9,658.90, 14,488.42 and 3,417.56 is: 5,126.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,658.90 : 14,488.42 = 3,417.56 : x
  2. Step 2: Convert to fraction form
    9,658.90/14,488.42 = 3,417.56/x
  3. Step 3: Cross multiply
    9,658.90x = 14,488.42 × 3,417.56
  4. Step 4: Simplify right side
    9,658.90x = 49,515,044.66
  5. Step 5: Solve for x
    x = 49,515,044.66/9,658.90
  6. Step 6: Final answer
    x = 5,126.36

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1.5x scale

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.