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Finding the Fourth Proportional to 1,756.74, 2,424.43 and 1,010.78

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Solution

The fourth proportional to 1,756.74, 2,424.43 and 1,010.78 is: 1,394.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756.74 : 2,424.43 = 1,010.78 : x
  2. Step 2: Convert to fraction form
    1,756.74/2,424.43 = 1,010.78/x
  3. Step 3: Cross multiply
    1,756.74x = 2,424.43 × 1,010.78
  4. Step 4: Simplify right side
    1,756.74x = 2,450,563.59
  5. Step 5: Solve for x
    x = 2,450,563.59/1,756.74
  6. Step 6: Final answer
    x = 1,394.95

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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.