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Finding the Fourth Proportional to 8,410.52, 11,607.89 and 6,417.32

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Solution

The fourth proportional to 8,410.52, 11,607.89 and 6,417.32 is: 8,856.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,410.52 : 11,607.89 = 6,417.32 : x
  2. Step 2: Convert to fraction form
    8,410.52/11,607.89 = 6,417.32/x
  3. Step 3: Cross multiply
    8,410.52x = 11,607.89 × 6,417.32
  4. Step 4: Simplify right side
    8,410.52x = 74,491,454.53
  5. Step 5: Solve for x
    x = 74,491,454.53/8,410.52
  6. Step 6: Final answer
    x = 8,856.94

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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.