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Finding the Fourth Proportional to 1,756.76, 2,635.14 and 1,237.38

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Solution

The fourth proportional to 1,756.76, 2,635.14 and 1,237.38 is: 1,856.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756.76 : 2,635.14 = 1,237.38 : x
  2. Step 2: Convert to fraction form
    1,756.76/2,635.14 = 1,237.38/x
  3. Step 3: Cross multiply
    1,756.76x = 2,635.14 × 1,237.38
  4. Step 4: Simplify right side
    1,756.76x = 3,260,669.53
  5. Step 5: Solve for x
    x = 3,260,669.53/1,756.76
  6. Step 6: Final answer
    x = 1,856.07

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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.