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Finding the Fourth Proportional to 12,799.60, 19,174.48 and 7,236.11

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Solution

The fourth proportional to 12,799.60, 19,174.48 and 7,236.11 is: 10,840.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,799.60 : 19,174.48 = 7,236.11 : x
  2. Step 2: Convert to fraction form
    12,799.60/19,174.48 = 7,236.11/x
  3. Step 3: Cross multiply
    12,799.60x = 19,174.48 × 7,236.11
  4. Step 4: Simplify right side
    12,799.60x = 138,748,676.32
  5. Step 5: Solve for x
    x = 138,748,676.32/12,799.60
  6. Step 6: Final answer
    x = 10,840.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.