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Finding the Fourth Proportional to 1,574.50, 2,362.06 and 882.15

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Solution

The fourth proportional to 1,574.50, 2,362.06 and 882.15 is: 1,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,574.50 : 2,362.06 = 882.15 : x
  2. Step 2: Convert to fraction form
    1,574.50/2,362.06 = 882.15/x
  3. Step 3: Cross multiply
    1,574.50x = 2,362.06 × 882.15
  4. Step 4: Simplify right side
    1,574.50x = 2,083,691.23
  5. Step 5: Solve for x
    x = 2,083,691.23/1,574.50
  6. Step 6: Final answer
    x = 1,323.40

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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.