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Finding the Fourth Proportional to 8,566.41, 11,821.64 and 4,840.41

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Solution

The fourth proportional to 8,566.41, 11,821.64 and 4,840.41 is: 6,679.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,566.41 : 11,821.64 = 4,840.41 : x
  2. Step 2: Convert to fraction form
    8,566.41/11,821.64 = 4,840.41/x
  3. Step 3: Cross multiply
    8,566.41x = 11,821.64 × 4,840.41
  4. Step 4: Simplify right side
    8,566.41x = 57,221,543.17
  5. Step 5: Solve for x
    x = 57,221,543.17/8,566.41
  6. Step 6: Final answer
    x = 6,679.76

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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.