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Finding the Fourth Proportional to 8,357.36, 11,527.43 and 4,819.28

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Solution

The fourth proportional to 8,357.36, 11,527.43 and 4,819.28 is: 6,647.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,357.36 : 11,527.43 = 4,819.28 : x
  2. Step 2: Convert to fraction form
    8,357.36/11,527.43 = 4,819.28/x
  3. Step 3: Cross multiply
    8,357.36x = 11,527.43 × 4,819.28
  4. Step 4: Simplify right side
    8,357.36x = 55,553,831.12
  5. Step 5: Solve for x
    x = 55,553,831.12/8,357.36
  6. Step 6: Final answer
    x = 6,647.30

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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.