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Finding the Fourth Proportional to 60,348.70, 90,525.48 and 28,742.50

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Solution

The fourth proportional to 60,348.70, 90,525.48 and 28,742.50 is: 43,114.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,348.70 : 90,525.48 = 28,742.50 : x
  2. Step 2: Convert to fraction form
    60,348.70/90,525.48 = 28,742.50/x
  3. Step 3: Cross multiply
    60,348.70x = 90,525.48 × 28,742.50
  4. Step 4: Simplify right side
    60,348.70x = 2,601,928,608.90
  5. Step 5: Solve for x
    x = 2,601,928,608.90/60,348.70
  6. Step 6: Final answer
    x = 43,114.91

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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.