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Finding the Fourth Proportional to 60,245.76, 90,308.88 and 28,600.20

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Solution

The fourth proportional to 60,245.76, 90,308.88 and 28,600.20 is: 42,871.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,245.76 : 90,308.88 = 28,600.20 : x
  2. Step 2: Convert to fraction form
    60,245.76/90,308.88 = 28,600.20/x
  3. Step 3: Cross multiply
    60,245.76x = 90,308.88 × 28,600.20
  4. Step 4: Simplify right side
    60,245.76x = 2,582,852,029.78
  5. Step 5: Solve for x
    x = 2,582,852,029.78/60,245.76
  6. Step 6: Final answer
    x = 42,871.93

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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.