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Finding the Fourth Proportional to 18,307.06, 25,263.64 and 10,349.30

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Solution

The fourth proportional to 18,307.06, 25,263.64 and 10,349.30 is: 14,281.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,307.06 : 25,263.64 = 10,349.30 : x
  2. Step 2: Convert to fraction form
    18,307.06/25,263.64 = 10,349.30/x
  3. Step 3: Cross multiply
    18,307.06x = 25,263.64 × 10,349.30
  4. Step 4: Simplify right side
    18,307.06x = 261,460,989.45
  5. Step 5: Solve for x
    x = 261,460,989.45/18,307.06
  6. Step 6: Final answer
    x = 14,281.98

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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.