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Finding the Fourth Proportional to 4,951.56, 6,831.30 and 2,854.92

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Solution

The fourth proportional to 4,951.56, 6,831.30 and 2,854.92 is: 3,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,951.56 : 6,831.30 = 2,854.92 : x
  2. Step 2: Convert to fraction form
    4,951.56/6,831.30 = 2,854.92/x
  3. Step 3: Cross multiply
    4,951.56x = 6,831.30 × 2,854.92
  4. Step 4: Simplify right side
    4,951.56x = 19,502,815.00
  5. Step 5: Solve for x
    x = 19,502,815.00/4,951.56
  6. Step 6: Final answer
    x = 3,938.72

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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.