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Finding the Fourth Proportional to 1,762.74, 2,432.34 and 1,054.38

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Solution

The fourth proportional to 1,762.74, 2,432.34 and 1,054.38 is: 1,454.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,762.74 : 2,432.34 = 1,054.38 : x
  2. Step 2: Convert to fraction form
    1,762.74/2,432.34 = 1,054.38/x
  3. Step 3: Cross multiply
    1,762.74x = 2,432.34 × 1,054.38
  4. Step 4: Simplify right side
    1,762.74x = 2,564,610.65
  5. Step 5: Solve for x
    x = 2,564,610.65/1,762.74
  6. Step 6: Final answer
    x = 1,454.90

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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.