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Finding the Fourth Proportional to 8,215.63, 11,337.98 and 4,860.41

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Solution

The fourth proportional to 8,215.63, 11,337.98 and 4,860.41 is: 6,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.63 : 11,337.98 = 4,860.41 : x
  2. Step 2: Convert to fraction form
    8,215.63/11,337.98 = 4,860.41/x
  3. Step 3: Cross multiply
    8,215.63x = 11,337.98 × 4,860.41
  4. Step 4: Simplify right side
    8,215.63x = 55,107,150.38
  5. Step 5: Solve for x
    x = 55,107,150.38/8,215.63
  6. Step 6: Final answer
    x = 6,707.60

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Half scale
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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.