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Finding the Fourth Proportional to 19,248.96, 28,868.34 and 7,562.28

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Solution

The fourth proportional to 19,248.96, 28,868.34 and 7,562.28 is: 11,341.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,248.96 : 28,868.34 = 7,562.28 : x
  2. Step 2: Convert to fraction form
    19,248.96/28,868.34 = 7,562.28/x
  3. Step 3: Cross multiply
    19,248.96x = 28,868.34 × 7,562.28
  4. Step 4: Simplify right side
    19,248.96x = 218,310,470.22
  5. Step 5: Solve for x
    x = 218,310,470.22/19,248.96
  6. Step 6: Final answer
    x = 11,341.42

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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.