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Finding the Fourth Proportional to 1,751.16, 2,416.64 and 965.20

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Solution

The fourth proportional to 1,751.16, 2,416.64 and 965.20 is: 1,332.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,751.16 : 2,416.64 = 965.20 : x
  2. Step 2: Convert to fraction form
    1,751.16/2,416.64 = 965.20/x
  3. Step 3: Cross multiply
    1,751.16x = 2,416.64 × 965.20
  4. Step 4: Simplify right side
    1,751.16x = 2,332,540.93
  5. Step 5: Solve for x
    x = 2,332,540.93/1,751.16
  6. Step 6: Final answer
    x = 1,332.00

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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.