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Finding the Fourth Proportional to 48,988.80, 73,483.20 and 17,820.48

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Solution

The fourth proportional to 48,988.80, 73,483.20 and 17,820.48 is: 26,730.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,988.80 : 73,483.20 = 17,820.48 : x
  2. Step 2: Convert to fraction form
    48,988.80/73,483.20 = 17,820.48/x
  3. Step 3: Cross multiply
    48,988.80x = 73,483.20 × 17,820.48
  4. Step 4: Simplify right side
    48,988.80x = 1,309,505,895.94
  5. Step 5: Solve for x
    x = 1,309,505,895.94/48,988.80
  6. Step 6: Final answer
    x = 26,730.72

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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.