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Finding the Fourth Proportional to 4,886.92, 7,331.46 and 1,600.21

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Solution

The fourth proportional to 4,886.92, 7,331.46 and 1,600.21 is: 2,400.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,886.92 : 7,331.46 = 1,600.21 : x
  2. Step 2: Convert to fraction form
    4,886.92/7,331.46 = 1,600.21/x
  3. Step 3: Cross multiply
    4,886.92x = 7,331.46 × 1,600.21
  4. Step 4: Simplify right side
    4,886.92x = 11,731,875.61
  5. Step 5: Solve for x
    x = 11,731,875.61/4,886.92
  6. Step 6: Final answer
    x = 2,400.67

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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.