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Finding the Fourth Proportional to 60,077.04, 90,116.80 and 18,524

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Solution

The fourth proportional to 60,077.04, 90,116.80 and 18,524 is: 27,786.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,077.04 : 90,116.80 = 18,524 : x
  2. Step 2: Convert to fraction form
    60,077.04/90,116.80 = 18,524/x
  3. Step 3: Cross multiply
    60,077.04x = 90,116.80 × 18,524
  4. Step 4: Simplify right side
    60,077.04x = 1,669,323,603.20
  5. Step 5: Solve for x
    x = 1,669,323,603.20/60,077.04
  6. Step 6: Final answer
    x = 27,786.38

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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.