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Finding the Fourth Proportional to 19,104.65, 28,646.48 and 6,623.56

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Solution

The fourth proportional to 19,104.65, 28,646.48 and 6,623.56 is: 9,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,104.65 : 28,646.48 = 6,623.56 : x
  2. Step 2: Convert to fraction form
    19,104.65/28,646.48 = 6,623.56/x
  3. Step 3: Cross multiply
    19,104.65x = 28,646.48 × 6,623.56
  4. Step 4: Simplify right side
    19,104.65x = 189,741,645.95
  5. Step 5: Solve for x
    x = 189,741,645.95/19,104.65
  6. Step 6: Final answer
    x = 9,931.70

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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.