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Finding the Fourth Proportional to 1,051.76, 1,568.44 and 1,026.92

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Solution

The fourth proportional to 1,051.76, 1,568.44 and 1,026.92 is: 1,531.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051.76 : 1,568.44 = 1,026.92 : x
  2. Step 2: Convert to fraction form
    1,051.76/1,568.44 = 1,026.92/x
  3. Step 3: Cross multiply
    1,051.76x = 1,568.44 × 1,026.92
  4. Step 4: Simplify right side
    1,051.76x = 1,610,662.40
  5. Step 5: Solve for x
    x = 1,610,662.40/1,051.76
  6. Step 6: Final answer
    x = 1,531.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.