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Finding the Fourth Proportional to 8,564.60, 12,833.10 and 4,855.80

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Solution

The fourth proportional to 8,564.60, 12,833.10 and 4,855.80 is: 7,275.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,564.60 : 12,833.10 = 4,855.80 : x
  2. Step 2: Convert to fraction form
    8,564.60/12,833.10 = 4,855.80/x
  3. Step 3: Cross multiply
    8,564.60x = 12,833.10 × 4,855.80
  4. Step 4: Simplify right side
    8,564.60x = 62,314,966.98
  5. Step 5: Solve for x
    x = 62,314,966.98/8,564.60
  6. Step 6: Final answer
    x = 7,275.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.