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Finding the Fourth Proportional to 60,402.49, 90,563.74 and 28,817.42

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Solution

The fourth proportional to 60,402.49, 90,563.74 and 28,817.42 is: 43,207.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,402.49 : 90,563.74 = 28,817.42 : x
  2. Step 2: Convert to fraction form
    60,402.49/90,563.74 = 28,817.42/x
  3. Step 3: Cross multiply
    60,402.49x = 90,563.74 × 28,817.42
  4. Step 4: Simplify right side
    60,402.49x = 2,609,813,486.72
  5. Step 5: Solve for x
    x = 2,609,813,486.72/60,402.49
  6. Step 6: Final answer
    x = 43,207.05

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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.