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Finding the Fourth Proportional to 1,162.08, 1,600.11 and 1,056.51

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Solution

The fourth proportional to 1,162.08, 1,600.11 and 1,056.51 is: 1,454.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162.08 : 1,600.11 = 1,056.51 : x
  2. Step 2: Convert to fraction form
    1,162.08/1,600.11 = 1,056.51/x
  3. Step 3: Cross multiply
    1,162.08x = 1,600.11 × 1,056.51
  4. Step 4: Simplify right side
    1,162.08x = 1,690,532.22
  5. Step 5: Solve for x
    x = 1,690,532.22/1,162.08
  6. Step 6: Final answer
    x = 1,454.75

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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.