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Finding the Fourth Proportional to 60,147.60, 90,173.34 and 28,541.76

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Solution

The fourth proportional to 60,147.60, 90,173.34 and 28,541.76 is: 42,789.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,147.60 : 90,173.34 = 28,541.76 : x
  2. Step 2: Convert to fraction form
    60,147.60/90,173.34 = 28,541.76/x
  3. Step 3: Cross multiply
    60,147.60x = 90,173.34 × 28,541.76
  4. Step 4: Simplify right side
    60,147.60x = 2,573,705,828.68
  5. Step 5: Solve for x
    x = 2,573,705,828.68/60,147.60
  6. Step 6: Final answer
    x = 42,789.83

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1.5x scale

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.