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Finding the Fourth Proportional to 9,763.34, 14,646.90 and 3,187.76

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Solution

The fourth proportional to 9,763.34, 14,646.90 and 3,187.76 is: 4,782.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,763.34 : 14,646.90 = 3,187.76 : x
  2. Step 2: Convert to fraction form
    9,763.34/14,646.90 = 3,187.76/x
  3. Step 3: Cross multiply
    9,763.34x = 14,646.90 × 3,187.76
  4. Step 4: Simplify right side
    9,763.34x = 46,690,801.94
  5. Step 5: Solve for x
    x = 46,690,801.94/9,763.34
  6. Step 6: Final answer
    x = 4,782.26

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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.