Home / 19,243.20-28,852.92-7,543.02

Finding the Fourth Proportional to 19,243.20, 28,852.92 and 7,543.02

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Solution

The fourth proportional to 19,243.20, 28,852.92 and 7,543.02 is: 11,309.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,243.20 : 28,852.92 = 7,543.02 : x
  2. Step 2: Convert to fraction form
    19,243.20/28,852.92 = 7,543.02/x
  3. Step 3: Cross multiply
    19,243.20x = 28,852.92 × 7,543.02
  4. Step 4: Simplify right side
    19,243.20x = 217,638,152.62
  5. Step 5: Solve for x
    x = 217,638,152.62/19,243.20
  6. Step 6: Final answer
    x = 11,309.87

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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.