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Finding the Fourth Proportional to 8,559.61, 11,811.84 and 4,782.03

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Solution

The fourth proportional to 8,559.61, 11,811.84 and 4,782.03 is: 6,598.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.61 : 11,811.84 = 4,782.03 : x
  2. Step 2: Convert to fraction form
    8,559.61/11,811.84 = 4,782.03/x
  3. Step 3: Cross multiply
    8,559.61x = 11,811.84 × 4,782.03
  4. Step 4: Simplify right side
    8,559.61x = 56,484,573.24
  5. Step 5: Solve for x
    x = 56,484,573.24/8,559.61
  6. Step 6: Final answer
    x = 6,598.97

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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.