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Finding the Fourth Proportional to 3,886.16, 5,831.97 and 2,654.75

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Solution

The fourth proportional to 3,886.16, 5,831.97 and 2,654.75 is: 3,984.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.16 : 5,831.97 = 2,654.75 : x
  2. Step 2: Convert to fraction form
    3,886.16/5,831.97 = 2,654.75/x
  3. Step 3: Cross multiply
    3,886.16x = 5,831.97 × 2,654.75
  4. Step 4: Simplify right side
    3,886.16x = 15,482,426.98
  5. Step 5: Solve for x
    x = 15,482,426.98/3,886.16
  6. Step 6: Final answer
    x = 3,984.00

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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.