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Finding the Fourth Proportional to 1,574.14, 2,362.12 and 752.60

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Solution

The fourth proportional to 1,574.14, 2,362.12 and 752.60 is: 1,129.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,574.14 : 2,362.12 = 752.60 : x
  2. Step 2: Convert to fraction form
    1,574.14/2,362.12 = 752.60/x
  3. Step 3: Cross multiply
    1,574.14x = 2,362.12 × 752.60
  4. Step 4: Simplify right side
    1,574.14x = 1,777,731.51
  5. Step 5: Solve for x
    x = 1,777,731.51/1,574.14
  6. Step 6: Final answer
    x = 1,129.34

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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.