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Finding the Fourth Proportional to 5,008.25, 6,911.71 and 2,800.25

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Solution

The fourth proportional to 5,008.25, 6,911.71 and 2,800.25 is: 3,864.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,008.25 : 6,911.71 = 2,800.25 : x
  2. Step 2: Convert to fraction form
    5,008.25/6,911.71 = 2,800.25/x
  3. Step 3: Cross multiply
    5,008.25x = 6,911.71 × 2,800.25
  4. Step 4: Simplify right side
    5,008.25x = 19,354,501.93
  5. Step 5: Solve for x
    x = 19,354,501.93/5,008.25
  6. Step 6: Final answer
    x = 3,864.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.