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Finding the Fourth Proportional to 8,671.02, 11,965.23 and 5,313.16

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Solution

The fourth proportional to 8,671.02, 11,965.23 and 5,313.16 is: 7,331.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.02 : 11,965.23 = 5,313.16 : x
  2. Step 2: Convert to fraction form
    8,671.02/11,965.23 = 5,313.16/x
  3. Step 3: Cross multiply
    8,671.02x = 11,965.23 × 5,313.16
  4. Step 4: Simplify right side
    8,671.02x = 63,573,181.43
  5. Step 5: Solve for x
    x = 63,573,181.43/8,671.02
  6. Step 6: Final answer
    x = 7,331.68

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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.