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Finding the Fourth Proportional to 13,168.65, 19,753.98 and 4,403.58

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Solution

The fourth proportional to 13,168.65, 19,753.98 and 4,403.58 is: 6,605.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.65 : 19,753.98 = 4,403.58 : x
  2. Step 2: Convert to fraction form
    13,168.65/19,753.98 = 4,403.58/x
  3. Step 3: Cross multiply
    13,168.65x = 19,753.98 × 4,403.58
  4. Step 4: Simplify right side
    13,168.65x = 86,988,231.25
  5. Step 5: Solve for x
    x = 86,988,231.25/13,168.65
  6. Step 6: Final answer
    x = 6,605.71

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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.