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Finding the Fourth Proportional to 1,632.71, 2,255.01 and 1,075.67

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Solution

The fourth proportional to 1,632.71, 2,255.01 and 1,075.67 is: 1,485.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,632.71 : 2,255.01 = 1,075.67 : x
  2. Step 2: Convert to fraction form
    1,632.71/2,255.01 = 1,075.67/x
  3. Step 3: Cross multiply
    1,632.71x = 2,255.01 × 1,075.67
  4. Step 4: Simplify right side
    1,632.71x = 2,425,635.33
  5. Step 5: Solve for x
    x = 2,425,635.33/1,632.71
  6. Step 6: Final answer
    x = 1,485.65

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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.