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Finding the Fourth Proportional to 1,182.70, 1,760.45 and 1,165.16

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Solution

The fourth proportional to 1,182.70, 1,760.45 and 1,165.16 is: 1,734.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182.70 : 1,760.45 = 1,165.16 : x
  2. Step 2: Convert to fraction form
    1,182.70/1,760.45 = 1,165.16/x
  3. Step 3: Cross multiply
    1,182.70x = 1,760.45 × 1,165.16
  4. Step 4: Simplify right side
    1,182.70x = 2,051,191.29
  5. Step 5: Solve for x
    x = 2,051,191.29/1,182.70
  6. Step 6: Final answer
    x = 1,734.34

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1.5x scale

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.