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Finding the Fourth Proportional to 11,410.28, 15,746.02 and 6,374.57

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Solution

The fourth proportional to 11,410.28, 15,746.02 and 6,374.57 is: 8,796.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,410.28 : 15,746.02 = 6,374.57 : x
  2. Step 2: Convert to fraction form
    11,410.28/15,746.02 = 6,374.57/x
  3. Step 3: Cross multiply
    11,410.28x = 15,746.02 × 6,374.57
  4. Step 4: Simplify right side
    11,410.28x = 100,374,130.14
  5. Step 5: Solve for x
    x = 100,374,130.14/11,410.28
  6. Step 6: Final answer
    x = 8,796.81

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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.