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Finding the Fourth Proportional to 1,775.88, 2,665.10 and 1,192.01

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Solution

The fourth proportional to 1,775.88, 2,665.10 and 1,192.01 is: 1,788.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.88 : 2,665.10 = 1,192.01 : x
  2. Step 2: Convert to fraction form
    1,775.88/2,665.10 = 1,192.01/x
  3. Step 3: Cross multiply
    1,775.88x = 2,665.10 × 1,192.01
  4. Step 4: Simplify right side
    1,775.88x = 3,176,815.51
  5. Step 5: Solve for x
    x = 3,176,815.51/1,775.88
  6. Step 6: Final answer
    x = 1,788.87

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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.