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Finding the Fourth Proportional to 1,756.99, 2,423.12 and 1,262.89

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Solution

The fourth proportional to 1,756.99, 2,423.12 and 1,262.89 is: 1,741.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756.99 : 2,423.12 = 1,262.89 : x
  2. Step 2: Convert to fraction form
    1,756.99/2,423.12 = 1,262.89/x
  3. Step 3: Cross multiply
    1,756.99x = 2,423.12 × 1,262.89
  4. Step 4: Simplify right side
    1,756.99x = 3,060,130.73
  5. Step 5: Solve for x
    x = 3,060,130.73/1,756.99
  6. Step 6: Final answer
    x = 1,741.69

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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.