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Finding the Fourth Proportional to 8,653.10, 12,922.00 and 8,560.55

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Solution

The fourth proportional to 8,653.10, 12,922.00 and 8,560.55 is: 12,783.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,653.10 : 12,922.00 = 8,560.55 : x
  2. Step 2: Convert to fraction form
    8,653.10/12,922.00 = 8,560.55/x
  3. Step 3: Cross multiply
    8,653.10x = 12,922.00 × 8,560.55
  4. Step 4: Simplify right side
    8,653.10x = 110,619,438.00
  5. Step 5: Solve for x
    x = 110,619,438.00/8,653.10
  6. Step 6: Final answer
    x = 12,783.80

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.