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Finding the Fourth Proportional to 1,042.76, 1,563.69 and 941.01

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Solution

The fourth proportional to 1,042.76, 1,563.69 and 941.01 is: 1,411.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042.76 : 1,563.69 = 941.01 : x
  2. Step 2: Convert to fraction form
    1,042.76/1,563.69 = 941.01/x
  3. Step 3: Cross multiply
    1,042.76x = 1,563.69 × 941.01
  4. Step 4: Simplify right side
    1,042.76x = 1,471,447.93
  5. Step 5: Solve for x
    x = 1,471,447.93/1,042.76
  6. Step 6: Final answer
    x = 1,411.11

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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.