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Finding the Fourth Proportional to 3,392.42, 5,088.64 and 1,749.45

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Solution

The fourth proportional to 3,392.42, 5,088.64 and 1,749.45 is: 2,624.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.42 : 5,088.64 = 1,749.45 : x
  2. Step 2: Convert to fraction form
    3,392.42/5,088.64 = 1,749.45/x
  3. Step 3: Cross multiply
    3,392.42x = 5,088.64 × 1,749.45
  4. Step 4: Simplify right side
    3,392.42x = 8,902,321.25
  5. Step 5: Solve for x
    x = 8,902,321.25/3,392.42
  6. Step 6: Final answer
    x = 2,624.18

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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.