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Finding the Fourth Proportional to 1,192.10, 1,610.55 and 1,192.10

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Solution

The fourth proportional to 1,192.10, 1,610.55 and 1,192.10 is: 1,610.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.10 : 1,610.55 = 1,192.10 : x
  2. Step 2: Convert to fraction form
    1,192.10/1,610.55 = 1,192.10/x
  3. Step 3: Cross multiply
    1,192.10x = 1,610.55 × 1,192.10
  4. Step 4: Simplify right side
    1,192.10x = 1,919,936.66
  5. Step 5: Solve for x
    x = 1,919,936.66/1,192.10
  6. Step 6: Final answer
    x = 1,610.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.