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Finding the Fourth Proportional to 8,580.60, 11,840.64 and 4,803.12

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Solution

The fourth proportional to 8,580.60, 11,840.64 and 4,803.12 is: 6,627.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,580.60 : 11,840.64 = 4,803.12 : x
  2. Step 2: Convert to fraction form
    8,580.60/11,840.64 = 4,803.12/x
  3. Step 3: Cross multiply
    8,580.60x = 11,840.64 × 4,803.12
  4. Step 4: Simplify right side
    8,580.60x = 56,872,014.80
  5. Step 5: Solve for x
    x = 56,872,014.80/8,580.60
  6. Step 6: Final answer
    x = 6,627.98

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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.