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Finding the Fourth Proportional to 5,117.76, 7,674.08 and 1,654.08

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Solution

The fourth proportional to 5,117.76, 7,674.08 and 1,654.08 is: 2,480.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.76 : 7,674.08 = 1,654.08 : x
  2. Step 2: Convert to fraction form
    5,117.76/7,674.08 = 1,654.08/x
  3. Step 3: Cross multiply
    5,117.76x = 7,674.08 × 1,654.08
  4. Step 4: Simplify right side
    5,117.76x = 12,693,542.25
  5. Step 5: Solve for x
    x = 12,693,542.25/5,117.76
  6. Step 6: Final answer
    x = 2,480.29

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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.