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Finding the Fourth Proportional to 4,820.58, 6,653.79 and 2,831.22

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Solution

The fourth proportional to 4,820.58, 6,653.79 and 2,831.22 is: 3,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,820.58 : 6,653.79 = 2,831.22 : x
  2. Step 2: Convert to fraction form
    4,820.58/6,653.79 = 2,831.22/x
  3. Step 3: Cross multiply
    4,820.58x = 6,653.79 × 2,831.22
  4. Step 4: Simplify right side
    4,820.58x = 18,838,343.32
  5. Step 5: Solve for x
    x = 18,838,343.32/4,820.58
  6. Step 6: Final answer
    x = 3,907.90

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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.