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Finding the Fourth Proportional to 1,165.64, 1,748.46 and 950.72

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Solution

The fourth proportional to 1,165.64, 1,748.46 and 950.72 is: 1,426.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.64 : 1,748.46 = 950.72 : x
  2. Step 2: Convert to fraction form
    1,165.64/1,748.46 = 950.72/x
  3. Step 3: Cross multiply
    1,165.64x = 1,748.46 × 950.72
  4. Step 4: Simplify right side
    1,165.64x = 1,662,295.89
  5. Step 5: Solve for x
    x = 1,662,295.89/1,165.64
  6. Step 6: Final answer
    x = 1,426.08

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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.