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Finding the Fourth Proportional to 12,090.77, 18,133.39 and 4,592.77

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Solution

The fourth proportional to 12,090.77, 18,133.39 and 4,592.77 is: 6,888.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.77 : 18,133.39 = 4,592.77 : x
  2. Step 2: Convert to fraction form
    12,090.77/18,133.39 = 4,592.77/x
  3. Step 3: Cross multiply
    12,090.77x = 18,133.39 × 4,592.77
  4. Step 4: Simplify right side
    12,090.77x = 83,282,375.96
  5. Step 5: Solve for x
    x = 83,282,375.96/12,090.77
  6. Step 6: Final answer
    x = 6,888.10

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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.