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Finding the Fourth Proportional to 12,563.12, 17,337.72 and 7,259.60

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Solution

The fourth proportional to 12,563.12, 17,337.72 and 7,259.60 is: 10,018.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,563.12 : 17,337.72 = 7,259.60 : x
  2. Step 2: Convert to fraction form
    12,563.12/17,337.72 = 7,259.60/x
  3. Step 3: Cross multiply
    12,563.12x = 17,337.72 × 7,259.60
  4. Step 4: Simplify right side
    12,563.12x = 125,864,912.11
  5. Step 5: Solve for x
    x = 125,864,912.11/12,563.12
  6. Step 6: Final answer
    x = 10,018.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.