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Finding the Fourth Proportional to 12,027.64, 16,599.96 and 7,311

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Solution

The fourth proportional to 12,027.64, 16,599.96 and 7,311 is: 10,090.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,027.64 : 16,599.96 = 7,311 : x
  2. Step 2: Convert to fraction form
    12,027.64/16,599.96 = 7,311/x
  3. Step 3: Cross multiply
    12,027.64x = 16,599.96 × 7,311
  4. Step 4: Simplify right side
    12,027.64x = 121,362,307.56
  5. Step 5: Solve for x
    x = 121,362,307.56/12,027.64
  6. Step 6: Final answer
    x = 10,090.28

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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.