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Finding the Fourth Proportional to 1,143.15, 1,714.32 and 1,052.03

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Solution

The fourth proportional to 1,143.15, 1,714.32 and 1,052.03 is: 1,577.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143.15 : 1,714.32 = 1,052.03 : x
  2. Step 2: Convert to fraction form
    1,143.15/1,714.32 = 1,052.03/x
  3. Step 3: Cross multiply
    1,143.15x = 1,714.32 × 1,052.03
  4. Step 4: Simplify right side
    1,143.15x = 1,803,507.50
  5. Step 5: Solve for x
    x = 1,803,507.50/1,143.15
  6. Step 6: Final answer
    x = 1,577.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.