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Finding the Fourth Proportional to 2,074.01, 3,110.40 and 775.17

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Solution

The fourth proportional to 2,074.01, 3,110.40 and 775.17 is: 1,162.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.01 : 3,110.40 = 775.17 : x
  2. Step 2: Convert to fraction form
    2,074.01/3,110.40 = 775.17/x
  3. Step 3: Cross multiply
    2,074.01x = 3,110.40 × 775.17
  4. Step 4: Simplify right side
    2,074.01x = 2,411,088.77
  5. Step 5: Solve for x
    x = 2,411,088.77/2,074.01
  6. Step 6: Final answer
    x = 1,162.53

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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.