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Finding the Fourth Proportional to 5,009.52, 6,911.82 and 2,912.16

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Solution

The fourth proportional to 5,009.52, 6,911.82 and 2,912.16 is: 4,018.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,009.52 : 6,911.82 = 2,912.16 : x
  2. Step 2: Convert to fraction form
    5,009.52/6,911.82 = 2,912.16/x
  3. Step 3: Cross multiply
    5,009.52x = 6,911.82 × 2,912.16
  4. Step 4: Simplify right side
    5,009.52x = 20,128,325.73
  5. Step 5: Solve for x
    x = 20,128,325.73/5,009.52
  6. Step 6: Final answer
    x = 4,018.01

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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.