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Finding the Fourth Proportional to 2,392.95, 3,302.25 and 1,330.81

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Solution

The fourth proportional to 2,392.95, 3,302.25 and 1,330.81 is: 1,836.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.95 : 3,302.25 = 1,330.81 : x
  2. Step 2: Convert to fraction form
    2,392.95/3,302.25 = 1,330.81/x
  3. Step 3: Cross multiply
    2,392.95x = 3,302.25 × 1,330.81
  4. Step 4: Simplify right side
    2,392.95x = 4,394,667.32
  5. Step 5: Solve for x
    x = 4,394,667.32/2,392.95
  6. Step 6: Final answer
    x = 1,836.51

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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.