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Finding the Fourth Proportional to 1,755.86, 2,422.01 and 1,047.24

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Solution

The fourth proportional to 1,755.86, 2,422.01 and 1,047.24 is: 1,444.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755.86 : 2,422.01 = 1,047.24 : x
  2. Step 2: Convert to fraction form
    1,755.86/2,422.01 = 1,047.24/x
  3. Step 3: Cross multiply
    1,755.86x = 2,422.01 × 1,047.24
  4. Step 4: Simplify right side
    1,755.86x = 2,536,425.75
  5. Step 5: Solve for x
    x = 2,536,425.75/1,755.86
  6. Step 6: Final answer
    x = 1,444.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.