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Finding the Fourth Proportional to 1,751.12, 2,416.56 and 965.18

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Solution

The fourth proportional to 1,751.12, 2,416.56 and 965.18 is: 1,331.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,751.12 : 2,416.56 = 965.18 : x
  2. Step 2: Convert to fraction form
    1,751.12/2,416.56 = 965.18/x
  3. Step 3: Cross multiply
    1,751.12x = 2,416.56 × 965.18
  4. Step 4: Simplify right side
    1,751.12x = 2,332,415.38
  5. Step 5: Solve for x
    x = 2,332,415.38/1,751.12
  6. Step 6: Final answer
    x = 1,331.96

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1.5x scale

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.