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Finding the Fourth Proportional to 1,467.68, 2,025.68 and 907.96

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Solution

The fourth proportional to 1,467.68, 2,025.68 and 907.96 is: 1,253.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,467.68 : 2,025.68 = 907.96 : x
  2. Step 2: Convert to fraction form
    1,467.68/2,025.68 = 907.96/x
  3. Step 3: Cross multiply
    1,467.68x = 2,025.68 × 907.96
  4. Step 4: Simplify right side
    1,467.68x = 1,839,236.41
  5. Step 5: Solve for x
    x = 1,839,236.41/1,467.68
  6. Step 6: Final answer
    x = 1,253.16

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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.