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Finding the Fourth Proportional to 4,890.74, 7,335.39 and 1,606.46

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Solution

The fourth proportional to 4,890.74, 7,335.39 and 1,606.46 is: 2,409.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.74 : 7,335.39 = 1,606.46 : x
  2. Step 2: Convert to fraction form
    4,890.74/7,335.39 = 1,606.46/x
  3. Step 3: Cross multiply
    4,890.74x = 7,335.39 × 1,606.46
  4. Step 4: Simplify right side
    4,890.74x = 11,784,010.62
  5. Step 5: Solve for x
    x = 11,784,010.62/4,890.74
  6. Step 6: Final answer
    x = 2,409.45

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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.