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Finding the Fourth Proportional to 2,353.76, 3,529.48 and 967.78

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Solution

The fourth proportional to 2,353.76, 3,529.48 and 967.78 is: 1,451.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.76 : 3,529.48 = 967.78 : x
  2. Step 2: Convert to fraction form
    2,353.76/3,529.48 = 967.78/x
  3. Step 3: Cross multiply
    2,353.76x = 3,529.48 × 967.78
  4. Step 4: Simplify right side
    2,353.76x = 3,415,742.51
  5. Step 5: Solve for x
    x = 3,415,742.51/2,353.76
  6. Step 6: Final answer
    x = 1,451.19

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1.5x scale

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.