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Finding the Fourth Proportional to 4,986.59, 7,478.01 and 1,654.22

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Solution

The fourth proportional to 4,986.59, 7,478.01 and 1,654.22 is: 2,480.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.59 : 7,478.01 = 1,654.22 : x
  2. Step 2: Convert to fraction form
    4,986.59/7,478.01 = 1,654.22/x
  3. Step 3: Cross multiply
    4,986.59x = 7,478.01 × 1,654.22
  4. Step 4: Simplify right side
    4,986.59x = 12,370,292.40
  5. Step 5: Solve for x
    x = 12,370,292.40/4,986.59
  6. Step 6: Final answer
    x = 2,480.71

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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.